From ba57b7559171b2fe32e1f4ca1dbd11299d8bdc40 Mon Sep 17 00:00:00 2001
From: bendera <szoftverhiba@gmail.com>
Date: Sat, 7 Feb 2026 22:34:13 +0100
Subject: [PATCH 1/2] Uninstall the prettier void html plugin

---
 .prettierrc.json  |  3 +--
 package-lock.json | 17 -----------------
 package.json      |  1 -
 3 files changed, 1 insertion(+), 20 deletions(-)

diff --git a/.prettierrc.json b/.prettierrc.json
index fce6e0653..3bc389c99 100644
--- a/.prettierrc.json
+++ b/.prettierrc.json
@@ -4,6 +4,5 @@
   "singleQuote": true,
   "bracketSpacing": false,
   "arrowParens": "always",
-  "endOfLine": "lf",
-  "plugins": ["@awmottaz/prettier-plugin-void-html"]
+  "endOfLine": "lf"
 }
diff --git a/package-lock.json b/package-lock.json
index bb802da74..d11df1281 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -13,7 +13,6 @@
         "lit": "^3.2.1"
       },
       "devDependencies": {
-        "@awmottaz/prettier-plugin-void-html": "^2.0.0",
         "@bendera/wds-plugin-directory-index": "^0.7.0",
         "@custom-elements-manifest/analyzer": "^0.11.0",
         "@eslint/eslintrc": "^3.3.1",
@@ -65,15 +64,6 @@
         "@vscode/codicons": ">=0.0.40"
       }
     },
-    "node_modules/@awmottaz/prettier-plugin-void-html": {
-      "version": "2.0.0",
-      "resolved": "https://registry.npmjs.org/@awmottaz/prettier-plugin-void-html/-/prettier-plugin-void-html-2.0.0.tgz",
-      "integrity": "sha512-5EHM/j8D44ZJwy5Z3iwdbxuehMwDUTQhm7j5Gv2cYDEJbDkwnH6u++19E+49CFqGuimTO1lHmf/xCA+/LQE7vw==",
-      "dev": true,
-      "peerDependencies": {
-        "prettier": "3.0.0 - 3.7.x"
-      }
-    },
     "node_modules/@babel/code-frame": {
       "version": "7.22.13",
       "resolved": "https://registry.npmjs.org/@babel/code-frame/-/code-frame-7.22.13.tgz",
@@ -14013,13 +14003,6 @@
     }
   },
   "dependencies": {
-    "@awmottaz/prettier-plugin-void-html": {
-      "version": "2.0.0",
-      "resolved": "https://registry.npmjs.org/@awmottaz/prettier-plugin-void-html/-/prettier-plugin-void-html-2.0.0.tgz",
-      "integrity": "sha512-5EHM/j8D44ZJwy5Z3iwdbxuehMwDUTQhm7j5Gv2cYDEJbDkwnH6u++19E+49CFqGuimTO1lHmf/xCA+/LQE7vw==",
-      "dev": true,
-      "requires": {}
-    },
     "@babel/code-frame": {
       "version": "7.22.13",
       "resolved": "https://registry.npmjs.org/@babel/code-frame/-/code-frame-7.22.13.tgz",
diff --git a/package.json b/package.json
index cbc8f9b15..65e7543e6 100644
--- a/package.json
+++ b/package.json
@@ -139,7 +139,6 @@
     "@vscode/codicons": ">=0.0.40"
   },
   "devDependencies": {
-    "@awmottaz/prettier-plugin-void-html": "^2.0.0",
     "@bendera/wds-plugin-directory-index": "^0.7.0",
     "@custom-elements-manifest/analyzer": "^0.11.0",
     "@eslint/eslintrc": "^3.3.1",

From 6ee0553c476d1f4051e88d8dcda43c5c57f9ca03 Mon Sep 17 00:00:00 2001
From: bendera <szoftverhiba@gmail.com>
Date: Sat, 7 Feb 2026 22:36:58 +0100
Subject: [PATCH 2/2] Reformat files

---
 dev/_template-csp.html                               |  8 ++++----
 dev/_template-fallback-styles.html                   |  6 +++---
 dev/_template.html                                   |  6 +++---
 dev/vscode-badge/basic-example.html                  |  6 +++---
 dev/vscode-badge/fallback-styles.html                |  6 +++---
 dev/vscode-button-group/dropdown-menu.html           |  6 +++---
 dev/vscode-button-group/vscode-button-group.html     |  6 +++---
 dev/vscode-button/autofocus.html                     |  6 +++---
 dev/vscode-button/basic-examples.html                |  6 +++---
 dev/vscode-button/block-button.html                  |  6 +++---
 dev/vscode-button/fallback-styles.html               |  6 +++---
 dev/vscode-button/icon-button.html                   |  6 +++---
 dev/vscode-button/reset.html                         |  8 ++++----
 dev/vscode-button/slots.html                         |  6 +++---
 dev/vscode-button/submit.html                        |  8 ++++----
 dev/vscode-button/variations.html                    |  8 ++++----
 dev/vscode-checkbox/basic-example.html               |  8 ++++----
 dev/vscode-checkbox/fallback-styles.html             |  6 +++---
 dev/vscode-checkbox/group.html                       |  8 ++++----
 dev/vscode-checkbox/toggle.html                      |  6 +++---
 dev/vscode-checkbox/validate-checked.html            | 10 +++++-----
 dev/vscode-collapsible/actions-stop-propagation.html |  6 +++---
 .../always-show-header-actions.html                  |  6 +++---
 dev/vscode-collapsible/vscode-collapsible.html       |  6 +++---
 dev/vscode-context-menu/basic-example.html           |  6 +++---
 dev/vscode-context-menu/fallback-styles.html         |  6 +++---
 dev/vscode-divider/basic-example.html                |  6 +++---
 dev/vscode-divider/fallback-styles.html              |  6 +++---
 dev/vscode-form-helper/csp.html                      |  8 ++++----
 dev/vscode-icon/fallback-styles.html                 |  6 +++---
 dev/vscode-icon/missing-codicon-css.html             |  4 ++--
 dev/vscode-icon/nonce.html                           |  8 ++++----
 dev/vscode-label/basic-example.html                  |  6 +++---
 dev/vscode-multi-select/a11y-combobox.html           |  6 +++---
 dev/vscode-multi-select/a11y-select.html             |  6 +++---
 dev/vscode-multi-select/autofocus-combobox.html      |  6 +++---
 dev/vscode-multi-select/autofocus-select.html        |  6 +++---
 .../combobox-suggestion-mode.html                    |  6 +++---
 dev/vscode-multi-select/combobox.html                |  6 +++---
 dev/vscode-multi-select/events.html                  |  6 +++---
 dev/vscode-multi-select/fallback-styles.html         |  6 +++---
 dev/vscode-multi-select/issue-510.html               |  6 +++---
 dev/vscode-multi-select/long-text.html               |  6 +++---
 dev/vscode-multi-select/open-prop.html               |  6 +++---
 dev/vscode-multi-select/set-option.html              |  6 +++---
 .../set-value-before-options.html                    |  6 +++---
 dev/vscode-multi-select/sync-options.html            |  6 +++---
 dev/vscode-progress-bar/basic-example.html           |  6 +++---
 dev/vscode-progress-bar/fallback-styles.html         |  6 +++---
 dev/vscode-progress-ring/fallback-styles.html        |  6 +++---
 dev/vscode-radio-group/checked.html                  | 12 ++++++------
 dev/vscode-radio-group/default-checked.html          | 12 ++++++------
 dev/vscode-radio-group/issue-511.html                |  6 +++---
 dev/vscode-radio/fallback-styles.html                |  6 +++---
 dev/vscode-scrollable/always-visible.html            |  6 +++---
 dev/vscode-scrollable/change-event.html              |  6 +++---
 dev/vscode-scrollable/csp.html                       |  8 ++++----
 dev/vscode-scrollable/fallback-styles.html           |  6 +++---
 dev/vscode-single-select/combobox-mode/a11y.html     |  6 +++---
 .../combobox-mode/autofocus-combobox.html            |  6 +++---
 .../combobox-mode/combobox-suggestion-mode.html      |  6 +++---
 dev/vscode-single-select/combobox-mode/combobox.html |  6 +++---
 .../combobox-mode/deleting-value.html                |  6 +++---
 dev/vscode-single-select/issue-530.html              |  6 +++---
 dev/vscode-single-select/select-mode/a11y.html       |  6 +++---
 .../select-mode/autofocus-select.html                |  6 +++---
 .../select-mode/basic-example.html                   |  6 +++---
 .../select-mode/default-empty.html                   |  6 +++---
 .../select-mode/description.html                     |  6 +++---
 .../select-mode/disabled-options.html                |  6 +++---
 .../select-mode/dispatch-invalid-event.html          |  6 +++---
 .../select-mode/element-value.html                   |  6 +++---
 .../select-mode/empty-label.html                     |  6 +++---
 .../select-mode/initial-form-value.html              |  6 +++---
 dev/vscode-single-select/select-mode/issue-514.html  |  6 +++---
 .../select-mode/large-list-within-collapsible.html   |  6 +++---
 dev/vscode-single-select/select-mode/large-list.html |  6 +++---
 dev/vscode-single-select/select-mode/long-text.html  |  6 +++---
 dev/vscode-single-select/select-mode/open-prop.html  |  6 +++---
 .../select-mode/open-when-enter-key-pressed.html     |  6 +++---
 .../select-mode/option-with-empty-value.html         |  6 +++---
 .../select-mode/position-above.html                  |  6 +++---
 .../select-mode/required-flag.html                   |  4 ++--
 .../select-mode/scroll-demo.html                     |  6 +++---
 .../select-mode/scroll-to-the-selected-option.html   |  6 +++---
 .../select-mode/set-empty-value-before-options.html  |  6 +++---
 .../select-mode/set-value-before-options.html        |  6 +++---
 .../select-mode/sync-options.html                    |  6 +++---
 dev/vscode-split-layout/csp.html                     |  8 ++++----
 dev/vscode-split-layout/default.html                 |  6 +++---
 dev/vscode-split-layout/fallback-styles.html         |  6 +++---
 dev/vscode-split-layout/fluid.html                   |  6 +++---
 dev/vscode-split-layout/horizontal.html              |  6 +++---
 dev/vscode-split-layout/min-size.html                |  6 +++---
 dev/vscode-split-layout/nested.html                  |  6 +++---
 dev/vscode-split-layout/vertical.html                |  6 +++---
 dev/vscode-table/561-col-runtime-error.html          |  6 +++---
 dev/vscode-table/basic-example.html                  |  6 +++---
 dev/vscode-table/collapsible-table.html              |  8 ++++----
 dev/vscode-table/fallback-styles.html                |  6 +++---
 dev/vscode-table/issue-516.html                      |  6 +++---
 dev/vscode-table/other-examples.html                 | 12 ++++++------
 dev/vscode-table/resizable.html                      |  8 ++++----
 dev/vscode-table/resize-empty-table.html             |  6 +++---
 dev/vscode-table/scrollable-body-bug.html            |  6 +++---
 dev/vscode-table/scrollable-content.html             |  8 ++++----
 dev/vscode-table/shift-table-columns.html            |  6 +++---
 dev/vscode-table/style-property-map-directive.html   |  6 +++---
 dev/vscode-tabs/basic-example.html                   |  6 +++---
 dev/vscode-tabs/fallback-styles.html                 |  6 +++---
 dev/vscode-tabs/panel-style.html                     |  6 +++---
 dev/vscode-textarea/a11y.html                        |  6 +++---
 dev/vscode-textarea/csp.html                         |  8 ++++----
 dev/vscode-textfield/basic-example.html              |  6 +++---
 dev/vscode-textfield/events.html                     |  6 +++---
 dev/vscode-textfield/fallback-styles.html            |  6 +++---
 dev/vscode-textfield/file-input.html                 |  6 +++---
 dev/vscode-textfield/validation-min-validation.html  |  8 ++++----
 dev/vscode-textfield/validation-on-value-change.html |  8 ++++----
 dev/vscode-toolbar-button/basic-example.html         |  6 +++---
 dev/vscode-toolbar-button/change-event.html          |  6 +++---
 dev/vscode-tree/basic-example.html                   |  6 +++---
 dev/vscode-tree/custom-styles.html                   |  6 +++---
 dev/vscode-tree/default-active-item.html             | 10 +++++-----
 dev/vscode-tree/double-click-expand-mode.html        | 10 +++++-----
 dev/vscode-tree/events.html                          | 10 +++++-----
 dev/vscode-tree/expand-all-collapse-all.html         |  6 +++---
 dev/vscode-tree/fallback-styles.html                 |  6 +++---
 dev/vscode-tree/guides-has-arrows.html               | 10 +++++-----
 dev/vscode-tree/guides-wo-arrows.html                | 10 +++++-----
 dev/vscode-tree/hide-arrows.html                     |  6 +++---
 dev/vscode-tree/hide-guides-and-arrows.html          |  6 +++---
 dev/vscode-tree/hide-guides.html                     |  6 +++---
 dev/vscode-tree/multi-select.html                    | 10 +++++-----
 dev/vscode-tree/oversized-icon.html                  |  6 +++---
 dev/vscode-tree/problems-tree.html                   |  6 +++---
 dev/vscode-tree/scm-tree.html                        |  8 ++++----
 dev/vscode-tree/set-active-item.html                 | 10 +++++-----
 dev/vscode-tree/stress-test.html                     |  6 +++---
 dev/vscode-tree/with-icons.html                      |  6 +++---
 src/vscode-checkbox/vscode-checkbox.ts               |  2 +-
 src/vscode-icon/vscode-icon.ts                       |  2 +-
 src/vscode-multi-select/vscode-multi-select.ts       |  2 +-
 src/vscode-radio/vscode-radio.ts                     |  2 +-
 src/vscode-single-select/vscode-single-select.ts     |  2 +-
 src/vscode-textfield/vscode-textfield.ts             |  2 +-
 146 files changed, 466 insertions(+), 466 deletions(-)

diff --git a/dev/_template-csp.html b/dev/_template-csp.html
index 5fc0e9fe7..606ee4877 100644
--- a/dev/_template-csp.html
+++ b/dev/_template-csp.html
@@ -1,8 +1,8 @@
 <!doctype html>
 <html lang="en">
   <head>
-    <meta charset="UTF-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <meta
       http-equiv="Content-Security-Policy"
       content="
@@ -14,14 +14,14 @@
         style-src-elem 'nonce-abc123';
         connect-src ws://localhost:8000/wds
       "
-    >
+    />
     <title>VSCode Elements</title>
     <link
       rel="stylesheet"
       href="/node_modules/@vscode/codicons/dist/codicon.css"
       id="vscode-codicon-stylesheet"
       nonce="abc123"
-    >
+    />
     <script nonce="abc123">
       window.vscodeWebviewPlaygroundNonce = 'abc123';
 
diff --git a/dev/_template-fallback-styles.html b/dev/_template-fallback-styles.html
index 813183972..c1db98aec 100644
--- a/dev/_template-fallback-styles.html
+++ b/dev/_template-fallback-styles.html
@@ -1,14 +1,14 @@
 <!doctype html>
 <html lang="en">
   <head>
-    <meta charset="UTF-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>VSCode Elements</title>
     <link
       rel="stylesheet"
       href="/node_modules/@vscode/codicons/dist/codicon.css"
       id="vscode-codicon-stylesheet"
-    >
+    />
     <script type="module" src="/dist/main.js"></script>
     <script>
       const logEvents = (selector, eventType) => {
diff --git a/dev/_template.html b/dev/_template.html
index 816f8cb19..e2eff4d88 100644
--- a/dev/_template.html
+++ b/dev/_template.html
@@ -1,14 +1,14 @@
 <!doctype html>
 <html lang="en">
   <head>
-    <meta charset="UTF-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>VSCode Elements</title>
     <link
       rel="stylesheet"
       href="/node_modules/@vscode/codicons/dist/codicon.css"
       id="vscode-codicon-stylesheet"
-    >
+    />
     <script
       type="module"
       src="/node_modules/@vscode-elements/webview-playground/dist/index.js"
diff --git a/dev/vscode-badge/basic-example.html b/dev/vscode-badge/basic-example.html
index 05e3dd69f..7810dbc93 100644
--- a/dev/vscode-badge/basic-example.html
+++ b/dev/vscode-badge/basic-example.html
@@ -1,14 +1,14 @@
 <!doctype html>
 <html lang="en">
   <head>
-    <meta charset="UTF-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>VSCode Elements</title>
     <link
       rel="stylesheet"
       href="/node_modules/@vscode/codicons/dist/codicon.css"
       id="vscode-codicon-stylesheet"
-    >
+    />
     <script
       type="module"
       src="/node_modules/@vscode-elements/webview-playground/dist/index.js"
diff --git a/dev/vscode-badge/fallback-styles.html b/dev/vscode-badge/fallback-styles.html
index 2a0ed8be3..8803cf7ef 100644
--- a/dev/vscode-badge/fallback-styles.html
+++ b/dev/vscode-badge/fallback-styles.html
@@ -1,14 +1,14 @@
 <!doctype html>
 <html lang="en">
   <head>
-    <meta charset="UTF-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>VSCode Elements</title>
     <link
       rel="stylesheet"
       href="/node_modules/@vscode/codicons/dist/codicon.css"
       id="vscode-codicon-stylesheet"
-    >
+    />
     <script type="module" src="/dist/main.js"></script>
     <script>
       const logEvents = (selector, eventType) => {
diff --git a/dev/vscode-button-group/dropdown-menu.html b/dev/vscode-button-group/dropdown-menu.html
index 8163a1731..17a6065d6 100644
--- a/dev/vscode-button-group/dropdown-menu.html
+++ b/dev/vscode-button-group/dropdown-menu.html
@@ -1,14 +1,14 @@
 <!doctype html>
 <html lang="en">
   <head>
-    <meta charset="utf-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <meta charset="utf-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>&lt;vscode-button-group&gt; Demo</title>
     <link
       rel="stylesheet"
       href="/node_modules/@vscode/codicons/dist/codicon.css"
       id="vscode-codicon-stylesheet"
-    >
+    />
     <script
       type="module"
       src="/node_modules/@vscode-elements/webview-playground/dist/index.js"
diff --git a/dev/vscode-button-group/vscode-button-group.html b/dev/vscode-button-group/vscode-button-group.html
index 1c6b60695..db35a32ea 100644
--- a/dev/vscode-button-group/vscode-button-group.html
+++ b/dev/vscode-button-group/vscode-button-group.html
@@ -1,14 +1,14 @@
 <!doctype html>
 <html lang="en">
   <head>
-    <meta charset="utf-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <meta charset="utf-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>&lt;vscode-button-group&gt; Demo</title>
     <link
       rel="stylesheet"
       href="/node_modules/@vscode/codicons/dist/codicon.css"
       id="vscode-codicon-stylesheet"
-    >
+    />
     <script
       type="module"
       src="/node_modules/@vscode-elements/webview-playground/dist/index.js"
diff --git a/dev/vscode-button/autofocus.html b/dev/vscode-button/autofocus.html
index 0a43ae304..885fd8deb 100644
--- a/dev/vscode-button/autofocus.html
+++ b/dev/vscode-button/autofocus.html
@@ -1,14 +1,14 @@
 <!doctype html>
 <html lang="en">
   <head>
-    <meta charset="UTF-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>VSCode Elements</title>
     <link
       rel="stylesheet"
       href="/node_modules/@vscode/codicons/dist/codicon.css"
       id="vscode-codicon-stylesheet"
-    >
+    />
     <script
       type="module"
       src="/node_modules/@vscode-elements/webview-playground/dist/index.js"
diff --git a/dev/vscode-button/basic-examples.html b/dev/vscode-button/basic-examples.html
index 140b04be3..6bdd50a49 100644
--- a/dev/vscode-button/basic-examples.html
+++ b/dev/vscode-button/basic-examples.html
@@ -1,14 +1,14 @@
 <!doctype html>
 <html lang="en">
   <head>
-    <meta charset="UTF-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>VSCode Elements</title>
     <link
       rel="stylesheet"
       href="/node_modules/@vscode/codicons/dist/codicon.css"
       id="vscode-codicon-stylesheet"
-    >
+    />
     <script
       type="module"
       src="/node_modules/@vscode-elements/webview-playground/dist/index.js"
diff --git a/dev/vscode-button/block-button.html b/dev/vscode-button/block-button.html
index 0f4c95d3f..2e4edb58f 100644
--- a/dev/vscode-button/block-button.html
+++ b/dev/vscode-button/block-button.html
@@ -1,14 +1,14 @@
 <!doctype html>
 <html lang="en">
   <head>
-    <meta charset="UTF-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>VSCode Elements</title>
     <link
       rel="stylesheet"
       href="/node_modules/@vscode/codicons/dist/codicon.css"
       id="vscode-codicon-stylesheet"
-    >
+    />
     <script
       type="module"
       src="/node_modules/@vscode-elements/webview-playground/dist/index.js"
diff --git a/dev/vscode-button/fallback-styles.html b/dev/vscode-button/fallback-styles.html
index 422fea0bf..05d91f766 100644
--- a/dev/vscode-button/fallback-styles.html
+++ b/dev/vscode-button/fallback-styles.html
@@ -1,14 +1,14 @@
 <!doctype html>
 <html lang="en">
   <head>
-    <meta charset="UTF-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>VSCode Elements</title>
     <link
       rel="stylesheet"
       href="/node_modules/@vscode/codicons/dist/codicon.css"
       id="vscode-codicon-stylesheet"
-    >
+    />
     <script type="module" src="/dist/main.js"></script>
     <script>
       const logEvents = (selector, eventType) => {
diff --git a/dev/vscode-button/icon-button.html b/dev/vscode-button/icon-button.html
index 9a610b8e8..55a9c6d8e 100644
--- a/dev/vscode-button/icon-button.html
+++ b/dev/vscode-button/icon-button.html
@@ -1,14 +1,14 @@
 <!doctype html>
 <html lang="en">
   <head>
-    <meta charset="UTF-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>VSCode Elements</title>
     <link
       rel="stylesheet"
       href="/node_modules/@vscode/codicons/dist/codicon.css"
       id="vscode-codicon-stylesheet"
-    >
+    />
     <script
       type="module"
       src="/node_modules/@vscode-elements/webview-playground/dist/index.js"
diff --git a/dev/vscode-button/reset.html b/dev/vscode-button/reset.html
index 886f1aa8e..6b740b95d 100644
--- a/dev/vscode-button/reset.html
+++ b/dev/vscode-button/reset.html
@@ -1,14 +1,14 @@
 <!doctype html>
 <html lang="en">
   <head>
-    <meta charset="UTF-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>VSCode Elements</title>
     <link
       rel="stylesheet"
       href="/node_modules/@vscode/codicons/dist/codicon.css"
       id="vscode-codicon-stylesheet"
-    >
+    />
     <script
       type="module"
       src="/node_modules/@vscode-elements/webview-playground/dist/index.js"
@@ -28,7 +28,7 @@ <h1>Reset form</h1>
     <main>
       <vscode-demo>
         <form action="/">
-          <p><input type="text" value="Default value"></p>
+          <p><input type="text" value="Default value" /></p>
           <vscode-button type="reset">Reset</vscode-button>
         </form>
       </vscode-demo>
diff --git a/dev/vscode-button/slots.html b/dev/vscode-button/slots.html
index f5a42ca66..7f157b4e1 100644
--- a/dev/vscode-button/slots.html
+++ b/dev/vscode-button/slots.html
@@ -1,14 +1,14 @@
 <!doctype html>
 <html lang="en">
   <head>
-    <meta charset="UTF-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>VSCode Elements</title>
     <link
       rel="stylesheet"
       href="/node_modules/@vscode/codicons/dist/codicon.css"
       id="vscode-codicon-stylesheet"
-    >
+    />
     <script
       type="module"
       src="/node_modules/@vscode-elements/webview-playground/dist/index.js"
diff --git a/dev/vscode-button/submit.html b/dev/vscode-button/submit.html
index 31116d2ba..c0db71bf1 100644
--- a/dev/vscode-button/submit.html
+++ b/dev/vscode-button/submit.html
@@ -1,14 +1,14 @@
 <!doctype html>
 <html lang="en">
   <head>
-    <meta charset="UTF-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>VSCode Elements</title>
     <link
       rel="stylesheet"
       href="/node_modules/@vscode/codicons/dist/codicon.css"
       id="vscode-codicon-stylesheet"
-    >
+    />
     <script
       type="module"
       src="/node_modules/@vscode-elements/webview-playground/dist/index.js"
@@ -28,7 +28,7 @@ <h1>Reset form</h1>
     <main>
       <vscode-demo>
         <form action="/">
-          <p><input type="text" value="Default value" name="text-input"></p>
+          <p><input type="text" value="Default value" name="text-input" /></p>
           <vscode-button type="submit">Submit</vscode-button>
         </form>
       </vscode-demo>
diff --git a/dev/vscode-button/variations.html b/dev/vscode-button/variations.html
index d218cd0e0..6249a8cba 100644
--- a/dev/vscode-button/variations.html
+++ b/dev/vscode-button/variations.html
@@ -1,14 +1,14 @@
 <!doctype html>
 <html lang="en">
   <head>
-    <meta charset="UTF-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>VSCode Elements</title>
     <link
       rel="stylesheet"
       href="/node_modules/@vscode/codicons/dist/codicon.css"
       id="vscode-codicon-stylesheet"
-    >
+    />
     <script
       type="module"
       src="/node_modules/@vscode-elements/webview-playground/dist/index.js"
@@ -40,7 +40,7 @@
               alt="HTML logo"
               width="16"
               height="16"
-            >
+            />
           </vscode-button>
           <vscode-button icon-only></vscode-button>
           <vscode-button-group>
diff --git a/dev/vscode-checkbox/basic-example.html b/dev/vscode-checkbox/basic-example.html
index 7f2992c8f..9b5337022 100644
--- a/dev/vscode-checkbox/basic-example.html
+++ b/dev/vscode-checkbox/basic-example.html
@@ -1,9 +1,9 @@
 <!doctype html>
 <html lang="en">
   <head>
-    <meta charset="UTF-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
-    <meta http-equiv="X-UA-Compatible" content="ie=edge">
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
+    <meta http-equiv="X-UA-Compatible" content="ie=edge" />
     <title>VSCode Webview Elements demo page</title>
     <script
       type="module"
@@ -34,7 +34,7 @@ <h2>Basic example</h2>
           value="testvalue1"
           indeterminate
         ></vscode-checkbox>
-        <input type="checkbox" id="native-checkbox-1" disabled>
+        <input type="checkbox" id="native-checkbox-1" disabled />
         <label for="native-checkbox-1" disabled>Native checkbox</label>
         <script type="module">
           const cb1 = document.querySelector('#checkbox-1');
diff --git a/dev/vscode-checkbox/fallback-styles.html b/dev/vscode-checkbox/fallback-styles.html
index 09de58b0e..ef26a7ec1 100644
--- a/dev/vscode-checkbox/fallback-styles.html
+++ b/dev/vscode-checkbox/fallback-styles.html
@@ -1,14 +1,14 @@
 <!doctype html>
 <html lang="en">
   <head>
-    <meta charset="UTF-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>VSCode Elements</title>
     <link
       rel="stylesheet"
       href="/node_modules/@vscode/codicons/dist/codicon.css"
       id="vscode-codicon-stylesheet"
-    >
+    />
     <script type="module" src="/dist/main.js"></script>
     <script>
       const logEvents = (selector, eventType) => {
diff --git a/dev/vscode-checkbox/group.html b/dev/vscode-checkbox/group.html
index c07bca3cc..f22da88ea 100644
--- a/dev/vscode-checkbox/group.html
+++ b/dev/vscode-checkbox/group.html
@@ -1,14 +1,14 @@
 <!doctype html>
 <html lang="en">
   <head>
-    <meta charset="UTF-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>Checkbox</title>
     <link
       rel="stylesheet"
       href="/node_modules/@vscode/codicons/dist/codicon.css"
       id="vscode-codicon-stylesheet"
-    >
+    />
     <script
       type="module"
       src="/node_modules/@vscode-elements/webview-playground/dist/index.js"
@@ -34,7 +34,7 @@ <h2>Listen "change" and "invalid" events</h2>
             type="checkbox"
             id="native-checkbox-1"
             name="native-checkbox-1"
-          >
+          />
           <label for="native-checkbox-1">Native checkbox</label>
         </p>
         <button type="submit">Submit</button>
diff --git a/dev/vscode-checkbox/toggle.html b/dev/vscode-checkbox/toggle.html
index eac557c32..d917ba3bb 100644
--- a/dev/vscode-checkbox/toggle.html
+++ b/dev/vscode-checkbox/toggle.html
@@ -1,9 +1,9 @@
 <!doctype html>
 <html lang="en">
   <head>
-    <meta charset="UTF-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
-    <meta http-equiv="X-UA-Compatible" content="ie=edge">
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
+    <meta http-equiv="X-UA-Compatible" content="ie=edge" />
     <title>VSCode Webview Elements — Checkbox Toggle Demo</title>
     <script
       type="module"
diff --git a/dev/vscode-checkbox/validate-checked.html b/dev/vscode-checkbox/validate-checked.html
index 7a926342b..ba7b5944c 100644
--- a/dev/vscode-checkbox/validate-checked.html
+++ b/dev/vscode-checkbox/validate-checked.html
@@ -1,9 +1,9 @@
 <!doctype html>
 <html lang="en">
   <head>
-    <meta charset="UTF-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
-    <meta http-equiv="X-UA-Compatible" content="ie=edge">
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
+    <meta http-equiv="X-UA-Compatible" content="ie=edge" />
     <title>VSCode Webview Elements demo page</title>
     <script
       type="module"
@@ -32,8 +32,8 @@
           checked
           required
         ></vscode-checkbox>
-        <input type="checkbox" required>
-        <input type="checkbox" required checked>
+        <input type="checkbox" required />
+        <input type="checkbox" required checked />
       </vscode-demo>
     </main>
   </body>
diff --git a/dev/vscode-collapsible/actions-stop-propagation.html b/dev/vscode-collapsible/actions-stop-propagation.html
index f07d78586..339432837 100644
--- a/dev/vscode-collapsible/actions-stop-propagation.html
+++ b/dev/vscode-collapsible/actions-stop-propagation.html
@@ -1,14 +1,14 @@
 <!doctype html>
 <html lang="en">
   <head>
-    <meta charset="UTF-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>VSCode Elements</title>
     <link
       rel="stylesheet"
       href="/node_modules/@vscode/codicons/dist/codicon.css"
       id="vscode-codicon-stylesheet"
-    >
+    />
     <script
       type="module"
       src="/node_modules/@vscode-elements/webview-playground/dist/index.js"
diff --git a/dev/vscode-collapsible/always-show-header-actions.html b/dev/vscode-collapsible/always-show-header-actions.html
index 6e84a483b..77215ce18 100644
--- a/dev/vscode-collapsible/always-show-header-actions.html
+++ b/dev/vscode-collapsible/always-show-header-actions.html
@@ -1,14 +1,14 @@
 <!doctype html>
 <html lang="en">
   <head>
-    <meta charset="UTF-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>VSCode Elements</title>
     <link
       rel="stylesheet"
       href="/node_modules/@vscode/codicons/dist/codicon.css"
       id="vscode-codicon-stylesheet"
-    >
+    />
     <script
       type="module"
       src="/node_modules/@vscode-elements/webview-playground/dist/index.js"
diff --git a/dev/vscode-collapsible/vscode-collapsible.html b/dev/vscode-collapsible/vscode-collapsible.html
index d65c903c3..ba2e31345 100644
--- a/dev/vscode-collapsible/vscode-collapsible.html
+++ b/dev/vscode-collapsible/vscode-collapsible.html
@@ -1,14 +1,14 @@
 <!doctype html>
 <html lang="en">
   <head>
-    <meta charset="UTF-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>VSCode Elements</title>
     <link
       rel="stylesheet"
       href="/node_modules/@vscode/codicons/dist/codicon.css"
       id="vscode-codicon-stylesheet"
-    >
+    />
     <script
       type="module"
       src="/node_modules/@vscode-elements/webview-playground/dist/index.js"
diff --git a/dev/vscode-context-menu/basic-example.html b/dev/vscode-context-menu/basic-example.html
index f6c174b8e..de709e3a2 100644
--- a/dev/vscode-context-menu/basic-example.html
+++ b/dev/vscode-context-menu/basic-example.html
@@ -1,14 +1,14 @@
 <!doctype html>
 <html lang="en">
   <head>
-    <meta charset="UTF-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>Context Menu</title>
     <link
       rel="stylesheet"
       href="/node_modules/@vscode/codicons/dist/codicon.css"
       id="vscode-codicon-stylesheet"
-    >
+    />
     <script
       type="module"
       src="/node_modules/@vscode-elements/webview-playground/dist/index.js"
diff --git a/dev/vscode-context-menu/fallback-styles.html b/dev/vscode-context-menu/fallback-styles.html
index abf994c10..1c48bc5fc 100644
--- a/dev/vscode-context-menu/fallback-styles.html
+++ b/dev/vscode-context-menu/fallback-styles.html
@@ -1,14 +1,14 @@
 <!doctype html>
 <html lang="en">
   <head>
-    <meta charset="UTF-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>VSCode Elements</title>
     <link
       rel="stylesheet"
       href="/node_modules/@vscode/codicons/dist/codicon.css"
       id="vscode-codicon-stylesheet"
-    >
+    />
     <script type="module" src="/dist/main.js"></script>
     <script>
       const logEvents = (selector, eventType) => {
diff --git a/dev/vscode-divider/basic-example.html b/dev/vscode-divider/basic-example.html
index a1054a579..b1d66d7d7 100644
--- a/dev/vscode-divider/basic-example.html
+++ b/dev/vscode-divider/basic-example.html
@@ -1,14 +1,14 @@
 <!doctype html>
 <html lang="en">
   <head>
-    <meta charset="UTF-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>VSCode Elements</title>
     <link
       rel="stylesheet"
       href="/node_modules/@vscode/codicons/dist/codicon.css"
       id="vscode-codicon-stylesheet"
-    >
+    />
     <script
       type="module"
       src="/node_modules/@vscode-elements/webview-playground/dist/index.js"
diff --git a/dev/vscode-divider/fallback-styles.html b/dev/vscode-divider/fallback-styles.html
index 95f4e26d5..fe2a8160f 100644
--- a/dev/vscode-divider/fallback-styles.html
+++ b/dev/vscode-divider/fallback-styles.html
@@ -1,14 +1,14 @@
 <!doctype html>
 <html lang="en">
   <head>
-    <meta charset="UTF-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>VSCode Elements</title>
     <link
       rel="stylesheet"
       href="/node_modules/@vscode/codicons/dist/codicon.css"
       id="vscode-codicon-stylesheet"
-    >
+    />
     <script type="module" src="/dist/main.js"></script>
     <script>
       const logEvents = (selector, eventType) => {
diff --git a/dev/vscode-form-helper/csp.html b/dev/vscode-form-helper/csp.html
index 9e0a368b1..4ffa13003 100644
--- a/dev/vscode-form-helper/csp.html
+++ b/dev/vscode-form-helper/csp.html
@@ -1,8 +1,8 @@
 <!doctype html>
 <html lang="en">
   <head>
-    <meta charset="UTF-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <meta
       http-equiv="Content-Security-Policy"
       content="
@@ -14,14 +14,14 @@
         style-src-elem 'nonce-abc123';
         connect-src ws://localhost:8000/wds
       "
-    >
+    />
     <title>VSCode Elements</title>
     <link
       rel="stylesheet"
       href="/node_modules/@vscode/codicons/dist/codicon.css"
       id="vscode-codicon-stylesheet"
       nonce="abc123"
-    >
+    />
     <script nonce="abc123">
       window.vscodeWebviewPlaygroundNonce = 'abc123';
       window.vscodeElementsNonce = 'abc123';
diff --git a/dev/vscode-icon/fallback-styles.html b/dev/vscode-icon/fallback-styles.html
index cc8062432..1c343e8dd 100644
--- a/dev/vscode-icon/fallback-styles.html
+++ b/dev/vscode-icon/fallback-styles.html
@@ -1,14 +1,14 @@
 <!doctype html>
 <html lang="en">
   <head>
-    <meta charset="UTF-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>VSCode Elements</title>
     <link
       rel="stylesheet"
       href="/node_modules/@vscode/codicons/dist/codicon.css"
       id="vscode-codicon-stylesheet"
-    >
+    />
     <script type="module" src="/dist/main.js"></script>
     <script>
       const logEvents = (selector, eventType) => {
diff --git a/dev/vscode-icon/missing-codicon-css.html b/dev/vscode-icon/missing-codicon-css.html
index 00360d052..42336887a 100644
--- a/dev/vscode-icon/missing-codicon-css.html
+++ b/dev/vscode-icon/missing-codicon-css.html
@@ -1,8 +1,8 @@
 <!doctype html>
 <html lang="en">
   <head>
-    <meta charset="UTF-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>VSCode Elements</title>
     <script
       type="module"
diff --git a/dev/vscode-icon/nonce.html b/dev/vscode-icon/nonce.html
index b991b97bb..9a9fbda3c 100644
--- a/dev/vscode-icon/nonce.html
+++ b/dev/vscode-icon/nonce.html
@@ -1,19 +1,19 @@
 <!doctype html>
 <html lang="en">
   <head>
-    <meta charset="UTF-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <meta
       http-equiv="Content-Security-Policy"
       content="default-src 'none'; script-src 'nonce-abc123'; script-src-elem 'nonce-abc123'; font-src 'self' data: 'nonce-abc123'; style-src-elem 'nonce-abc123'"
-    >
+    />
     <title>VSCode Elements</title>
     <link
       rel="stylesheet"
       href="/node_modules/@vscode/codicons/dist/codicon.css"
       id="vscode-codicon-stylesheet"
       nonce="abc123"
-    >
+    />
     <script
       type="module"
       src="/node_modules/@vscode-elements/webview-playground/dist/index.js"
diff --git a/dev/vscode-label/basic-example.html b/dev/vscode-label/basic-example.html
index 2446b7cad..e75a40797 100644
--- a/dev/vscode-label/basic-example.html
+++ b/dev/vscode-label/basic-example.html
@@ -1,14 +1,14 @@
 <!doctype html>
 <html lang="en">
   <head>
-    <meta charset="UTF-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>VSCode Elements</title>
     <link
       rel="stylesheet"
       href="/node_modules/@vscode/codicons/dist/codicon.css"
       id="vscode-codicon-stylesheet"
-    >
+    />
     <script
       type="module"
       src="/node_modules/@vscode-elements/webview-playground/dist/index.js"
diff --git a/dev/vscode-multi-select/a11y-combobox.html b/dev/vscode-multi-select/a11y-combobox.html
index f70e4e8c5..1ee110eea 100644
--- a/dev/vscode-multi-select/a11y-combobox.html
+++ b/dev/vscode-multi-select/a11y-combobox.html
@@ -1,14 +1,14 @@
 <!doctype html>
 <html lang="en">
   <head>
-    <meta charset="UTF-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>VSCode Elements</title>
     <link
       rel="stylesheet"
       href="/node_modules/@vscode/codicons/dist/codicon.css"
       id="vscode-codicon-stylesheet"
-    >
+    />
     <script
       type="module"
       src="/node_modules/@vscode-elements/webview-playground/dist/index.js"
diff --git a/dev/vscode-multi-select/a11y-select.html b/dev/vscode-multi-select/a11y-select.html
index 0ddc3a1d4..9bd28cb14 100644
--- a/dev/vscode-multi-select/a11y-select.html
+++ b/dev/vscode-multi-select/a11y-select.html
@@ -1,14 +1,14 @@
 <!doctype html>
 <html lang="en">
   <head>
-    <meta charset="UTF-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>VSCode Elements</title>
     <link
       rel="stylesheet"
       href="/node_modules/@vscode/codicons/dist/codicon.css"
       id="vscode-codicon-stylesheet"
-    >
+    />
     <script
       type="module"
       src="/node_modules/@vscode-elements/webview-playground/dist/index.js"
diff --git a/dev/vscode-multi-select/autofocus-combobox.html b/dev/vscode-multi-select/autofocus-combobox.html
index 24876eaa9..4af705b29 100644
--- a/dev/vscode-multi-select/autofocus-combobox.html
+++ b/dev/vscode-multi-select/autofocus-combobox.html
@@ -1,14 +1,14 @@
 <!doctype html>
 <html lang="en">
   <head>
-    <meta charset="UTF-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>multi combo</title>
     <link
       rel="stylesheet"
       href="/node_modules/@vscode/codicons/dist/codicon.css"
       id="vscode-codicon-stylesheet"
-    >
+    />
     <script
       type="module"
       src="/node_modules/@vscode-elements/webview-playground/dist/index.js"
diff --git a/dev/vscode-multi-select/autofocus-select.html b/dev/vscode-multi-select/autofocus-select.html
index 4222806a9..2b85cfe75 100644
--- a/dev/vscode-multi-select/autofocus-select.html
+++ b/dev/vscode-multi-select/autofocus-select.html
@@ -1,14 +1,14 @@
 <!doctype html>
 <html lang="en">
   <head>
-    <meta charset="UTF-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>multi select</title>
     <link
       rel="stylesheet"
       href="/node_modules/@vscode/codicons/dist/codicon.css"
       id="vscode-codicon-stylesheet"
-    >
+    />
     <script
       type="module"
       src="/node_modules/@vscode-elements/webview-playground/dist/index.js"
diff --git a/dev/vscode-multi-select/combobox-suggestion-mode.html b/dev/vscode-multi-select/combobox-suggestion-mode.html
index c8116b02d..fb24f754a 100644
--- a/dev/vscode-multi-select/combobox-suggestion-mode.html
+++ b/dev/vscode-multi-select/combobox-suggestion-mode.html
@@ -1,14 +1,14 @@
 <!doctype html>
 <html lang="en">
   <head>
-    <meta charset="UTF-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>VSCode Elements</title>
     <link
       rel="stylesheet"
       href="/node_modules/@vscode/codicons/dist/codicon.css"
       id="vscode-codicon-stylesheet"
-    >
+    />
     <script
       type="module"
       src="/node_modules/@vscode-elements/webview-playground/dist/index.js"
diff --git a/dev/vscode-multi-select/combobox.html b/dev/vscode-multi-select/combobox.html
index 02ecd8a0e..0b25f7e12 100644
--- a/dev/vscode-multi-select/combobox.html
+++ b/dev/vscode-multi-select/combobox.html
@@ -1,14 +1,14 @@
 <!doctype html>
 <html lang="en">
   <head>
-    <meta charset="UTF-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>VSCode Elements</title>
     <link
       rel="stylesheet"
       href="/node_modules/@vscode/codicons/dist/codicon.css"
       id="vscode-codicon-stylesheet"
-    >
+    />
     <script
       type="module"
       src="/node_modules/@vscode-elements/webview-playground/dist/index.js"
diff --git a/dev/vscode-multi-select/events.html b/dev/vscode-multi-select/events.html
index afb372209..fa0814c1a 100644
--- a/dev/vscode-multi-select/events.html
+++ b/dev/vscode-multi-select/events.html
@@ -1,14 +1,14 @@
 <!doctype html>
 <html lang="en">
   <head>
-    <meta charset="UTF-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>MultiSelect</title>
     <link
       rel="stylesheet"
       href="/node_modules/@vscode/codicons/dist/codicon.css"
       id="vscode-codicon-stylesheet"
-    >
+    />
     <script
       type="module"
       src="/node_modules/@vscode-elements/webview-playground/dist/index.js"
diff --git a/dev/vscode-multi-select/fallback-styles.html b/dev/vscode-multi-select/fallback-styles.html
index 8ffc1bfe3..0b973d848 100644
--- a/dev/vscode-multi-select/fallback-styles.html
+++ b/dev/vscode-multi-select/fallback-styles.html
@@ -1,14 +1,14 @@
 <!doctype html>
 <html lang="en">
   <head>
-    <meta charset="UTF-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>VSCode Elements</title>
     <link
       rel="stylesheet"
       href="/node_modules/@vscode/codicons/dist/codicon.css"
       id="vscode-codicon-stylesheet"
-    >
+    />
     <script type="module" src="/dist/main.js"></script>
     <script>
       const logEvents = (selector, eventType) => {
diff --git a/dev/vscode-multi-select/issue-510.html b/dev/vscode-multi-select/issue-510.html
index 0ef9440dd..27b4d8433 100644
--- a/dev/vscode-multi-select/issue-510.html
+++ b/dev/vscode-multi-select/issue-510.html
@@ -1,14 +1,14 @@
 <!doctype html>
 <html lang="en">
   <head>
-    <meta charset="UTF-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>multi combo</title>
     <link
       rel="stylesheet"
       href="/node_modules/@vscode/codicons/dist/codicon.css"
       id="vscode-codicon-stylesheet"
-    >
+    />
     <script
       type="module"
       src="/node_modules/@vscode-elements/webview-playground/dist/index.js"
diff --git a/dev/vscode-multi-select/long-text.html b/dev/vscode-multi-select/long-text.html
index 88365bbdb..c51497310 100644
--- a/dev/vscode-multi-select/long-text.html
+++ b/dev/vscode-multi-select/long-text.html
@@ -1,14 +1,14 @@
 <!doctype html>
 <html lang="en">
   <head>
-    <meta charset="UTF-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>multi select</title>
     <link
       rel="stylesheet"
       href="/node_modules/@vscode/codicons/dist/codicon.css"
       id="vscode-codicon-stylesheet"
-    >
+    />
     <script
       type="module"
       src="/node_modules/@vscode-elements/webview-playground/dist/index.js"
diff --git a/dev/vscode-multi-select/open-prop.html b/dev/vscode-multi-select/open-prop.html
index 482d9b499..032eb0bfb 100644
--- a/dev/vscode-multi-select/open-prop.html
+++ b/dev/vscode-multi-select/open-prop.html
@@ -1,14 +1,14 @@
 <!doctype html>
 <html lang="en">
   <head>
-    <meta charset="UTF-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>VSCode Elements</title>
     <link
       rel="stylesheet"
       href="/node_modules/@vscode/codicons/dist/codicon.css"
       id="vscode-codicon-stylesheet"
-    >
+    />
     <script
       type="module"
       src="/node_modules/@vscode-elements/webview-playground/dist/index.js"
diff --git a/dev/vscode-multi-select/set-option.html b/dev/vscode-multi-select/set-option.html
index 5952df9f8..76d7ea705 100644
--- a/dev/vscode-multi-select/set-option.html
+++ b/dev/vscode-multi-select/set-option.html
@@ -1,14 +1,14 @@
 <!doctype html>
 <html lang="en">
   <head>
-    <meta charset="UTF-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>Multi Select</title>
     <link
       rel="stylesheet"
       href="/node_modules/@vscode/codicons/dist/codicon.css"
       id="vscode-codicon-stylesheet"
-    >
+    />
     <script
       type="module"
       src="/node_modules/@vscode-elements/webview-playground/dist/index.js"
diff --git a/dev/vscode-multi-select/set-value-before-options.html b/dev/vscode-multi-select/set-value-before-options.html
index 99bdc01ba..bcd4a7051 100644
--- a/dev/vscode-multi-select/set-value-before-options.html
+++ b/dev/vscode-multi-select/set-value-before-options.html
@@ -1,14 +1,14 @@
 <!doctype html>
 <html lang="en">
   <head>
-    <meta charset="UTF-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>Select</title>
     <link
       rel="stylesheet"
       href="/node_modules/@vscode/codicons/dist/codicon.css"
       id="vscode-codicon-stylesheet"
-    >
+    />
     <script
       type="module"
       src="/node_modules/@vscode-elements/webview-playground/dist/index.js"
diff --git a/dev/vscode-multi-select/sync-options.html b/dev/vscode-multi-select/sync-options.html
index 981d64f2d..900915f45 100644
--- a/dev/vscode-multi-select/sync-options.html
+++ b/dev/vscode-multi-select/sync-options.html
@@ -1,14 +1,14 @@
 <!doctype html>
 <html lang="en">
   <head>
-    <meta charset="UTF-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>VSCode Elements</title>
     <link
       rel="stylesheet"
       href="/node_modules/@vscode/codicons/dist/codicon.css"
       id="vscode-codicon-stylesheet"
-    >
+    />
     <script
       type="module"
       src="/node_modules/@vscode-elements/webview-playground/dist/index.js"
diff --git a/dev/vscode-progress-bar/basic-example.html b/dev/vscode-progress-bar/basic-example.html
index 97b179426..51ba11e37 100644
--- a/dev/vscode-progress-bar/basic-example.html
+++ b/dev/vscode-progress-bar/basic-example.html
@@ -1,14 +1,14 @@
 <!doctype html>
 <html lang="en">
   <head>
-    <meta charset="utf-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <meta charset="utf-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>&lt;vscode-progress-bar&gt; Demo</title>
     <link
       rel="stylesheet"
       href="/node_modules/@vscode/codicons/dist/codicon.css"
       id="vscode-codicon-stylesheet"
-    >
+    />
     <script
       type="module"
       src="/node_modules/@vscode-elements/webview-playground/dist/index.js"
diff --git a/dev/vscode-progress-bar/fallback-styles.html b/dev/vscode-progress-bar/fallback-styles.html
index 5c0b8fc7a..01e26ce25 100644
--- a/dev/vscode-progress-bar/fallback-styles.html
+++ b/dev/vscode-progress-bar/fallback-styles.html
@@ -1,14 +1,14 @@
 <!doctype html>
 <html lang="en">
   <head>
-    <meta charset="UTF-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>VSCode Elements</title>
     <link
       rel="stylesheet"
       href="/node_modules/@vscode/codicons/dist/codicon.css"
       id="vscode-codicon-stylesheet"
-    >
+    />
     <script type="module" src="/dist/main.js"></script>
     <script>
       const logEvents = (selector, eventType) => {
diff --git a/dev/vscode-progress-ring/fallback-styles.html b/dev/vscode-progress-ring/fallback-styles.html
index 1f45847a3..f07181818 100644
--- a/dev/vscode-progress-ring/fallback-styles.html
+++ b/dev/vscode-progress-ring/fallback-styles.html
@@ -1,14 +1,14 @@
 <!doctype html>
 <html lang="en">
   <head>
-    <meta charset="UTF-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>VSCode Elements</title>
     <link
       rel="stylesheet"
       href="/node_modules/@vscode/codicons/dist/codicon.css"
       id="vscode-codicon-stylesheet"
-    >
+    />
     <script type="module" src="/dist/main.js"></script>
     <script>
       const logEvents = (selector, eventType) => {
diff --git a/dev/vscode-radio-group/checked.html b/dev/vscode-radio-group/checked.html
index 2cb9ef7fc..3f96687d9 100644
--- a/dev/vscode-radio-group/checked.html
+++ b/dev/vscode-radio-group/checked.html
@@ -1,14 +1,14 @@
 <!doctype html>
 <html lang="en">
   <head>
-    <meta charset="UTF-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>VSCode Elements</title>
     <link
       rel="stylesheet"
       href="/node_modules/@vscode/codicons/dist/codicon.css"
       id="vscode-codicon-stylesheet"
-    >
+    />
     <script
       type="module"
       src="/node_modules/@vscode-elements/webview-playground/dist/index.js"
@@ -53,7 +53,7 @@ <h1>Component demo</h1>
 
       <form action="/">
         <p>
-          <input type="radio" name="radio-example-2" value="1" id="rb-1">
+          <input type="radio" name="radio-example-2" value="1" id="rb-1" />
           <label for="rb-1">Lorem</label>
         </p>
         <p>
@@ -63,7 +63,7 @@ <h1>Component demo</h1>
             value="2"
             id="rb-2"
             checked
-          >
+          />
           <label for="rb-2">Ipsum</label>
         </p>
         <p>
@@ -73,7 +73,7 @@ <h1>Component demo</h1>
             value="3"
             id="rb-3"
             checked
-          >
+          />
           <label for="rb-3">Dolor</label>
         </p>
         <button type="reset">Reset</button>
diff --git a/dev/vscode-radio-group/default-checked.html b/dev/vscode-radio-group/default-checked.html
index af87a80cb..9cf7c08e8 100644
--- a/dev/vscode-radio-group/default-checked.html
+++ b/dev/vscode-radio-group/default-checked.html
@@ -1,14 +1,14 @@
 <!doctype html>
 <html lang="en">
   <head>
-    <meta charset="UTF-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>VSCode Elements</title>
     <link
       rel="stylesheet"
       href="/node_modules/@vscode/codicons/dist/codicon.css"
       id="vscode-codicon-stylesheet"
-    >
+    />
     <script
       type="module"
       src="/node_modules/@vscode-elements/webview-playground/dist/index.js"
@@ -55,7 +55,7 @@ <h1>Component demo</h1>
 
       <form action="/">
         <p>
-          <input type="radio" name="radio-example-2" value="1" id="rb-1">
+          <input type="radio" name="radio-example-2" value="1" id="rb-1" />
           <label for="rb-1">Lorem</label>
         </p>
         <p>
@@ -65,7 +65,7 @@ <h1>Component demo</h1>
             value="2"
             id="rb-2"
             checked
-          >
+          />
           <label for="rb-2">Ipsum</label>
         </p>
         <p>
@@ -75,7 +75,7 @@ <h1>Component demo</h1>
             value="3"
             id="rb-3"
             checked
-          >
+          />
           <label for="rb-3">Dolor</label>
         </p>
         <button type="reset">Reset</button>
diff --git a/dev/vscode-radio-group/issue-511.html b/dev/vscode-radio-group/issue-511.html
index cd931a4cc..f26893c86 100644
--- a/dev/vscode-radio-group/issue-511.html
+++ b/dev/vscode-radio-group/issue-511.html
@@ -1,14 +1,14 @@
 <!doctype html>
 <html lang="en">
   <head>
-    <meta charset="UTF-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>VSCode Elements</title>
     <link
       rel="stylesheet"
       href="/node_modules/@vscode/codicons/dist/codicon.css"
       id="vscode-codicon-stylesheet"
-    >
+    />
     <script
       type="module"
       src="/node_modules/@vscode-elements/webview-playground/dist/index.js"
diff --git a/dev/vscode-radio/fallback-styles.html b/dev/vscode-radio/fallback-styles.html
index 169589b5b..23b810c78 100644
--- a/dev/vscode-radio/fallback-styles.html
+++ b/dev/vscode-radio/fallback-styles.html
@@ -1,14 +1,14 @@
 <!doctype html>
 <html lang="en">
   <head>
-    <meta charset="UTF-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>VSCode Elements</title>
     <link
       rel="stylesheet"
       href="/node_modules/@vscode/codicons/dist/codicon.css"
       id="vscode-codicon-stylesheet"
-    >
+    />
     <script type="module" src="/dist/main.js"></script>
     <script>
       const logEvents = (selector, eventType) => {
diff --git a/dev/vscode-scrollable/always-visible.html b/dev/vscode-scrollable/always-visible.html
index dc09270e1..cb87674e0 100644
--- a/dev/vscode-scrollable/always-visible.html
+++ b/dev/vscode-scrollable/always-visible.html
@@ -1,15 +1,15 @@
 <!doctype html>
 <html lang="en">
   <head>
-    <meta charset="UTF-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>VSCode Elements</title>
     <link
       rel="stylesheet"
       href="/node_modules/@vscode/codicons/dist/codicon.css"
       id="vscode-codicon-stylesheet"
       nonce="abc123"
-    >
+    />
     <style nonce="abc123">
       vscode-scrollable {
         width: 200px;
diff --git a/dev/vscode-scrollable/change-event.html b/dev/vscode-scrollable/change-event.html
index a20a03897..b52b5cccc 100644
--- a/dev/vscode-scrollable/change-event.html
+++ b/dev/vscode-scrollable/change-event.html
@@ -1,15 +1,15 @@
 <!doctype html>
 <html lang="en">
   <head>
-    <meta charset="UTF-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>VSCode Elements</title>
     <link
       rel="stylesheet"
       href="/node_modules/@vscode/codicons/dist/codicon.css"
       id="vscode-codicon-stylesheet"
       nonce="abc123"
-    >
+    />
     <style nonce="abc123">
       vscode-scrollable {
         width: 200px;
diff --git a/dev/vscode-scrollable/csp.html b/dev/vscode-scrollable/csp.html
index 269277dad..d9f860dd7 100644
--- a/dev/vscode-scrollable/csp.html
+++ b/dev/vscode-scrollable/csp.html
@@ -1,19 +1,19 @@
 <!doctype html>
 <html lang="en">
   <head>
-    <meta charset="UTF-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <meta
       http-equiv="Content-Security-Policy"
       content="default-src 'none'; script-src 'nonce-abc123'; script-src-elem 'nonce-abc123'; font-src 'self' data: 'nonce-abc123'; style-src 'nonce-abc123'; style-src-elem 'nonce-abc123'"
-    >
+    />
     <title>VSCode Elements</title>
     <link
       rel="stylesheet"
       href="/node_modules/@vscode/codicons/dist/codicon.css"
       id="vscode-codicon-stylesheet"
       nonce="abc123"
-    >
+    />
     <style nonce="abc123">
       vscode-scrollable {
         width: 200px;
diff --git a/dev/vscode-scrollable/fallback-styles.html b/dev/vscode-scrollable/fallback-styles.html
index b5fdd312b..588ce1ae7 100644
--- a/dev/vscode-scrollable/fallback-styles.html
+++ b/dev/vscode-scrollable/fallback-styles.html
@@ -1,14 +1,14 @@
 <!doctype html>
 <html lang="en">
   <head>
-    <meta charset="UTF-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>VSCode Elements</title>
     <link
       rel="stylesheet"
       href="/node_modules/@vscode/codicons/dist/codicon.css"
       id="vscode-codicon-stylesheet"
-    >
+    />
     <script type="module" src="/dist/main.js"></script>
     <script>
       const logEvents = (selector, eventType) => {
diff --git a/dev/vscode-single-select/combobox-mode/a11y.html b/dev/vscode-single-select/combobox-mode/a11y.html
index e1b73f59a..34ce69c87 100644
--- a/dev/vscode-single-select/combobox-mode/a11y.html
+++ b/dev/vscode-single-select/combobox-mode/a11y.html
@@ -1,14 +1,14 @@
 <!doctype html>
 <html lang="en">
   <head>
-    <meta charset="UTF-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>VSCode Elements</title>
     <link
       rel="stylesheet"
       href="/node_modules/@vscode/codicons/dist/codicon.css"
       id="vscode-codicon-stylesheet"
-    >
+    />
     <script
       type="module"
       src="/node_modules/@vscode-elements/webview-playground/dist/index.js"
diff --git a/dev/vscode-single-select/combobox-mode/autofocus-combobox.html b/dev/vscode-single-select/combobox-mode/autofocus-combobox.html
index 06bc96fb0..d3666cd38 100644
--- a/dev/vscode-single-select/combobox-mode/autofocus-combobox.html
+++ b/dev/vscode-single-select/combobox-mode/autofocus-combobox.html
@@ -1,14 +1,14 @@
 <!doctype html>
 <html lang="en">
   <head>
-    <meta charset="UTF-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>single combo</title>
     <link
       rel="stylesheet"
       href="/node_modules/@vscode/codicons/dist/codicon.css"
       id="vscode-codicon-stylesheet"
-    >
+    />
     <script
       type="module"
       src="/node_modules/@vscode-elements/webview-playground/dist/index.js"
diff --git a/dev/vscode-single-select/combobox-mode/combobox-suggestion-mode.html b/dev/vscode-single-select/combobox-mode/combobox-suggestion-mode.html
index 60d11f284..294941f5e 100644
--- a/dev/vscode-single-select/combobox-mode/combobox-suggestion-mode.html
+++ b/dev/vscode-single-select/combobox-mode/combobox-suggestion-mode.html
@@ -1,14 +1,14 @@
 <!doctype html>
 <html lang="en">
   <head>
-    <meta charset="UTF-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>VSCode Elements</title>
     <link
       rel="stylesheet"
       href="/node_modules/@vscode/codicons/dist/codicon.css"
       id="vscode-codicon-stylesheet"
-    >
+    />
     <script
       type="module"
       src="/node_modules/@vscode-elements/webview-playground/dist/index.js"
diff --git a/dev/vscode-single-select/combobox-mode/combobox.html b/dev/vscode-single-select/combobox-mode/combobox.html
index 1841d46af..93ce12c1d 100644
--- a/dev/vscode-single-select/combobox-mode/combobox.html
+++ b/dev/vscode-single-select/combobox-mode/combobox.html
@@ -1,14 +1,14 @@
 <!doctype html>
 <html lang="en">
   <head>
-    <meta charset="UTF-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>VSCode Elements</title>
     <link
       rel="stylesheet"
       href="/node_modules/@vscode/codicons/dist/codicon.css"
       id="vscode-codicon-stylesheet"
-    >
+    />
     <script
       type="module"
       src="/node_modules/@vscode-elements/webview-playground/dist/index.js"
diff --git a/dev/vscode-single-select/combobox-mode/deleting-value.html b/dev/vscode-single-select/combobox-mode/deleting-value.html
index 769f1f74d..d4208d7fd 100644
--- a/dev/vscode-single-select/combobox-mode/deleting-value.html
+++ b/dev/vscode-single-select/combobox-mode/deleting-value.html
@@ -1,14 +1,14 @@
 <!doctype html>
 <html lang="en">
   <head>
-    <meta charset="UTF-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>VSCode Elements</title>
     <link
       rel="stylesheet"
       href="/node_modules/@vscode/codicons/dist/codicon.css"
       id="vscode-codicon-stylesheet"
-    >
+    />
     <script
       type="module"
       src="/node_modules/@vscode-elements/webview-playground/dist/index.js"
diff --git a/dev/vscode-single-select/issue-530.html b/dev/vscode-single-select/issue-530.html
index 69725dd3e..93d43169b 100644
--- a/dev/vscode-single-select/issue-530.html
+++ b/dev/vscode-single-select/issue-530.html
@@ -1,14 +1,14 @@
 <!doctype html>
 <html lang="en">
   <head>
-    <meta charset="UTF-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>vscode-single-select stale index repro</title>
     <link
       rel="stylesheet"
       href="/node_modules/@vscode/codicons/dist/codicon.css"
       id="vscode-codicon-stylesheet"
-    >
+    />
     <script type="module" src="/dist/main.js"></script>
     <style>
       body {
diff --git a/dev/vscode-single-select/select-mode/a11y.html b/dev/vscode-single-select/select-mode/a11y.html
index ad8854a19..01fcb4e7f 100644
--- a/dev/vscode-single-select/select-mode/a11y.html
+++ b/dev/vscode-single-select/select-mode/a11y.html
@@ -1,14 +1,14 @@
 <!doctype html>
 <html lang="en">
   <head>
-    <meta charset="UTF-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>VSCode Elements</title>
     <link
       rel="stylesheet"
       href="/node_modules/@vscode/codicons/dist/codicon.css"
       id="vscode-codicon-stylesheet"
-    >
+    />
     <script
       type="module"
       src="/node_modules/@vscode-elements/webview-playground/dist/index.js"
diff --git a/dev/vscode-single-select/select-mode/autofocus-select.html b/dev/vscode-single-select/select-mode/autofocus-select.html
index cf5d9e7b9..5cc564664 100644
--- a/dev/vscode-single-select/select-mode/autofocus-select.html
+++ b/dev/vscode-single-select/select-mode/autofocus-select.html
@@ -1,14 +1,14 @@
 <!doctype html>
 <html lang="en">
   <head>
-    <meta charset="UTF-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>single select</title>
     <link
       rel="stylesheet"
       href="/node_modules/@vscode/codicons/dist/codicon.css"
       id="vscode-codicon-stylesheet"
-    >
+    />
     <script
       type="module"
       src="/node_modules/@vscode-elements/webview-playground/dist/index.js"
diff --git a/dev/vscode-single-select/select-mode/basic-example.html b/dev/vscode-single-select/select-mode/basic-example.html
index e69681667..5d50c9c6c 100644
--- a/dev/vscode-single-select/select-mode/basic-example.html
+++ b/dev/vscode-single-select/select-mode/basic-example.html
@@ -1,14 +1,14 @@
 <!doctype html>
 <html lang="en">
   <head>
-    <meta charset="UTF-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>VSCode Elements</title>
     <link
       rel="stylesheet"
       href="/node_modules/@vscode/codicons/dist/codicon.css"
       id="vscode-codicon-stylesheet"
-    >
+    />
     <script
       type="module"
       src="/node_modules/@vscode-elements/webview-playground/dist/index.js"
diff --git a/dev/vscode-single-select/select-mode/default-empty.html b/dev/vscode-single-select/select-mode/default-empty.html
index d952c0408..53c9e62a5 100644
--- a/dev/vscode-single-select/select-mode/default-empty.html
+++ b/dev/vscode-single-select/select-mode/default-empty.html
@@ -1,14 +1,14 @@
 <!doctype html>
 <html lang="en">
   <head>
-    <meta charset="UTF-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>Select</title>
     <link
       rel="stylesheet"
       href="/node_modules/@vscode/codicons/dist/codicon.css"
       id="vscode-codicon-stylesheet"
-    >
+    />
     <script
       type="module"
       src="/node_modules/@vscode-elements/webview-playground/dist/index.js"
diff --git a/dev/vscode-single-select/select-mode/description.html b/dev/vscode-single-select/select-mode/description.html
index a2587dbe5..074694f8d 100644
--- a/dev/vscode-single-select/select-mode/description.html
+++ b/dev/vscode-single-select/select-mode/description.html
@@ -1,14 +1,14 @@
 <!doctype html>
 <html lang="en">
   <head>
-    <meta charset="UTF-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>Single Select</title>
     <link
       rel="stylesheet"
       href="/node_modules/@vscode/codicons/dist/codicon.css"
       id="vscode-codicon-stylesheet"
-    >
+    />
     <script
       type="module"
       src="/node_modules/@vscode-elements/webview-playground/dist/index.js"
diff --git a/dev/vscode-single-select/select-mode/disabled-options.html b/dev/vscode-single-select/select-mode/disabled-options.html
index d01da9426..3767e1a8c 100644
--- a/dev/vscode-single-select/select-mode/disabled-options.html
+++ b/dev/vscode-single-select/select-mode/disabled-options.html
@@ -1,14 +1,14 @@
 <!doctype html>
 <html lang="en">
   <head>
-    <meta charset="UTF-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>VSCode Elements</title>
     <link
       rel="stylesheet"
       href="/node_modules/@vscode/codicons/dist/codicon.css"
       id="vscode-codicon-stylesheet"
-    >
+    />
     <script
       type="module"
       src="/node_modules/@vscode-elements/webview-playground/dist/index.js"
diff --git a/dev/vscode-single-select/select-mode/dispatch-invalid-event.html b/dev/vscode-single-select/select-mode/dispatch-invalid-event.html
index 0460f45f4..09146b746 100644
--- a/dev/vscode-single-select/select-mode/dispatch-invalid-event.html
+++ b/dev/vscode-single-select/select-mode/dispatch-invalid-event.html
@@ -1,14 +1,14 @@
 <!doctype html>
 <html lang="en">
   <head>
-    <meta charset="UTF-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>Single Select</title>
     <link
       rel="stylesheet"
       href="/node_modules/@vscode/codicons/dist/codicon.css"
       id="vscode-codicon-stylesheet"
-    >
+    />
     <script
       type="module"
       src="/node_modules/@vscode-elements/webview-playground/dist/index.js"
diff --git a/dev/vscode-single-select/select-mode/element-value.html b/dev/vscode-single-select/select-mode/element-value.html
index 3d5933920..a01655e88 100644
--- a/dev/vscode-single-select/select-mode/element-value.html
+++ b/dev/vscode-single-select/select-mode/element-value.html
@@ -1,9 +1,9 @@
 <!doctype html>
 <html lang="en">
   <head>
-    <meta charset="utf-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
-    <meta http-equiv="X-UA-Compatible" content="ie=edge">
+    <meta charset="utf-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
+    <meta http-equiv="X-UA-Compatible" content="ie=edge" />
     <title>&lt;vscode-single-select&gt; Demo</title>
     <script
       type="module"
diff --git a/dev/vscode-single-select/select-mode/empty-label.html b/dev/vscode-single-select/select-mode/empty-label.html
index 379f655b8..2b3010115 100644
--- a/dev/vscode-single-select/select-mode/empty-label.html
+++ b/dev/vscode-single-select/select-mode/empty-label.html
@@ -1,14 +1,14 @@
 <!doctype html>
 <html lang="en">
   <head>
-    <meta charset="UTF-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>Single Select</title>
     <link
       rel="stylesheet"
       href="/node_modules/@vscode/codicons/dist/codicon.css"
       id="vscode-codicon-stylesheet"
-    >
+    />
     <script
       type="module"
       src="/node_modules/@vscode-elements/webview-playground/dist/index.js"
diff --git a/dev/vscode-single-select/select-mode/initial-form-value.html b/dev/vscode-single-select/select-mode/initial-form-value.html
index d1bb59e38..b1d828bdf 100644
--- a/dev/vscode-single-select/select-mode/initial-form-value.html
+++ b/dev/vscode-single-select/select-mode/initial-form-value.html
@@ -1,9 +1,9 @@
 <!doctype html>
 <html lang="en">
   <head>
-    <meta charset="utf-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
-    <meta http-equiv="X-UA-Compatible" content="ie=edge">
+    <meta charset="utf-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
+    <meta http-equiv="X-UA-Compatible" content="ie=edge" />
     <title>&lt;vscode-single-select&gt; Demo</title>
     <script
       type="module"
diff --git a/dev/vscode-single-select/select-mode/issue-514.html b/dev/vscode-single-select/select-mode/issue-514.html
index 98552392a..1dc1fc6a7 100644
--- a/dev/vscode-single-select/select-mode/issue-514.html
+++ b/dev/vscode-single-select/select-mode/issue-514.html
@@ -1,14 +1,14 @@
 <!doctype html>
 <html lang="en">
   <head>
-    <meta charset="UTF-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>VSCode Elements</title>
     <link
       rel="stylesheet"
       href="/node_modules/@vscode/codicons/dist/codicon.css"
       id="vscode-codicon-stylesheet"
-    >
+    />
     <script
       type="module"
       src="/node_modules/@vscode-elements/webview-playground/dist/index.js"
diff --git a/dev/vscode-single-select/select-mode/large-list-within-collapsible.html b/dev/vscode-single-select/select-mode/large-list-within-collapsible.html
index 29fe25515..e4c88587f 100644
--- a/dev/vscode-single-select/select-mode/large-list-within-collapsible.html
+++ b/dev/vscode-single-select/select-mode/large-list-within-collapsible.html
@@ -1,14 +1,14 @@
 <!doctype html>
 <html lang="en">
   <head>
-    <meta charset="UTF-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>VSCode Elements</title>
     <link
       rel="stylesheet"
       href="/node_modules/@vscode/codicons/dist/codicon.css"
       id="vscode-codicon-stylesheet"
-    >
+    />
     <script
       type="module"
       src="/node_modules/@vscode-elements/webview-playground/dist/index.js"
diff --git a/dev/vscode-single-select/select-mode/large-list.html b/dev/vscode-single-select/select-mode/large-list.html
index 01719afbf..0665dde49 100644
--- a/dev/vscode-single-select/select-mode/large-list.html
+++ b/dev/vscode-single-select/select-mode/large-list.html
@@ -1,14 +1,14 @@
 <!doctype html>
 <html lang="en">
   <head>
-    <meta charset="UTF-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>VSCode Elements</title>
     <link
       rel="stylesheet"
       href="/node_modules/@vscode/codicons/dist/codicon.css"
       id="vscode-codicon-stylesheet"
-    >
+    />
     <script
       type="module"
       src="/node_modules/@vscode-elements/webview-playground/dist/index.js"
diff --git a/dev/vscode-single-select/select-mode/long-text.html b/dev/vscode-single-select/select-mode/long-text.html
index 829423ed5..464adfaae 100644
--- a/dev/vscode-single-select/select-mode/long-text.html
+++ b/dev/vscode-single-select/select-mode/long-text.html
@@ -1,14 +1,14 @@
 <!doctype html>
 <html lang="en">
   <head>
-    <meta charset="UTF-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>VSCode Elements</title>
     <link
       rel="stylesheet"
       href="/node_modules/@vscode/codicons/dist/codicon.css"
       id="vscode-codicon-stylesheet"
-    >
+    />
     <script
       type="module"
       src="/node_modules/@vscode-elements/webview-playground/dist/index.js"
diff --git a/dev/vscode-single-select/select-mode/open-prop.html b/dev/vscode-single-select/select-mode/open-prop.html
index 87de6dfaa..c6e07fbb9 100644
--- a/dev/vscode-single-select/select-mode/open-prop.html
+++ b/dev/vscode-single-select/select-mode/open-prop.html
@@ -1,14 +1,14 @@
 <!doctype html>
 <html lang="en">
   <head>
-    <meta charset="UTF-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>VSCode Elements</title>
     <link
       rel="stylesheet"
       href="/node_modules/@vscode/codicons/dist/codicon.css"
       id="vscode-codicon-stylesheet"
-    >
+    />
     <script
       type="module"
       src="/node_modules/@vscode-elements/webview-playground/dist/index.js"
diff --git a/dev/vscode-single-select/select-mode/open-when-enter-key-pressed.html b/dev/vscode-single-select/select-mode/open-when-enter-key-pressed.html
index b303a3917..40d8718a5 100644
--- a/dev/vscode-single-select/select-mode/open-when-enter-key-pressed.html
+++ b/dev/vscode-single-select/select-mode/open-when-enter-key-pressed.html
@@ -1,14 +1,14 @@
 <!doctype html>
 <html lang="en">
   <head>
-    <meta charset="UTF-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>Select</title>
     <link
       rel="stylesheet"
       href="/node_modules/@vscode/codicons/dist/codicon.css"
       id="vscode-codicon-stylesheet"
-    >
+    />
     <script
       type="module"
       src="/node_modules/@vscode-elements/webview-playground/dist/index.js"
diff --git a/dev/vscode-single-select/select-mode/option-with-empty-value.html b/dev/vscode-single-select/select-mode/option-with-empty-value.html
index 1ea887ab7..6d830f84f 100644
--- a/dev/vscode-single-select/select-mode/option-with-empty-value.html
+++ b/dev/vscode-single-select/select-mode/option-with-empty-value.html
@@ -1,14 +1,14 @@
 <!doctype html>
 <html lang="en">
   <head>
-    <meta charset="UTF-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>VSCode Elements</title>
     <link
       rel="stylesheet"
       href="/node_modules/@vscode/codicons/dist/codicon.css"
       id="vscode-codicon-stylesheet"
-    >
+    />
     <script
       type="module"
       src="/node_modules/@vscode-elements/webview-playground/dist/index.js"
diff --git a/dev/vscode-single-select/select-mode/position-above.html b/dev/vscode-single-select/select-mode/position-above.html
index 53c5adf6b..0b1e6d155 100644
--- a/dev/vscode-single-select/select-mode/position-above.html
+++ b/dev/vscode-single-select/select-mode/position-above.html
@@ -1,14 +1,14 @@
 <!doctype html>
 <html lang="en">
   <head>
-    <meta charset="UTF-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>VSCode Elements</title>
     <link
       rel="stylesheet"
       href="/node_modules/@vscode/codicons/dist/codicon.css"
       id="vscode-codicon-stylesheet"
-    >
+    />
     <script
       type="module"
       src="/node_modules/@vscode-elements/webview-playground/dist/index.js"
diff --git a/dev/vscode-single-select/select-mode/required-flag.html b/dev/vscode-single-select/select-mode/required-flag.html
index 8b282a679..0e6e56aa8 100644
--- a/dev/vscode-single-select/select-mode/required-flag.html
+++ b/dev/vscode-single-select/select-mode/required-flag.html
@@ -1,8 +1,8 @@
 <!doctype html>
 <html lang="en">
   <head>
-    <meta charset="UTF-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>Required</title>
     <script
       type="module"
diff --git a/dev/vscode-single-select/select-mode/scroll-demo.html b/dev/vscode-single-select/select-mode/scroll-demo.html
index 3cc561687..725f82d1c 100644
--- a/dev/vscode-single-select/select-mode/scroll-demo.html
+++ b/dev/vscode-single-select/select-mode/scroll-demo.html
@@ -1,14 +1,14 @@
 <!doctype html>
 <html lang="en">
   <head>
-    <meta charset="UTF-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>VSCode Elements</title>
     <link
       rel="stylesheet"
       href="/node_modules/@vscode/codicons/dist/codicon.css"
       id="vscode-codicon-stylesheet"
-    >
+    />
     <script
       type="module"
       src="/node_modules/@vscode-elements/webview-playground/dist/index.js"
diff --git a/dev/vscode-single-select/select-mode/scroll-to-the-selected-option.html b/dev/vscode-single-select/select-mode/scroll-to-the-selected-option.html
index 32cc3f1d4..3c5f512dc 100644
--- a/dev/vscode-single-select/select-mode/scroll-to-the-selected-option.html
+++ b/dev/vscode-single-select/select-mode/scroll-to-the-selected-option.html
@@ -1,14 +1,14 @@
 <!doctype html>
 <html lang="en">
   <head>
-    <meta charset="UTF-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>VSCode Elements</title>
     <link
       rel="stylesheet"
       href="/node_modules/@vscode/codicons/dist/codicon.css"
       id="vscode-codicon-stylesheet"
-    >
+    />
     <script
       type="module"
       src="/node_modules/@vscode-elements/webview-playground/dist/index.js"
diff --git a/dev/vscode-single-select/select-mode/set-empty-value-before-options.html b/dev/vscode-single-select/select-mode/set-empty-value-before-options.html
index 231c5b3a7..94e5ed87d 100644
--- a/dev/vscode-single-select/select-mode/set-empty-value-before-options.html
+++ b/dev/vscode-single-select/select-mode/set-empty-value-before-options.html
@@ -1,14 +1,14 @@
 <!doctype html>
 <html lang="en">
   <head>
-    <meta charset="UTF-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>Select</title>
     <link
       rel="stylesheet"
       href="/node_modules/@vscode/codicons/dist/codicon.css"
       id="vscode-codicon-stylesheet"
-    >
+    />
     <script
       type="module"
       src="/node_modules/@vscode-elements/webview-playground/dist/index.js"
diff --git a/dev/vscode-single-select/select-mode/set-value-before-options.html b/dev/vscode-single-select/select-mode/set-value-before-options.html
index 316f2f797..23c76afa7 100644
--- a/dev/vscode-single-select/select-mode/set-value-before-options.html
+++ b/dev/vscode-single-select/select-mode/set-value-before-options.html
@@ -1,14 +1,14 @@
 <!doctype html>
 <html lang="en">
   <head>
-    <meta charset="UTF-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>Select</title>
     <link
       rel="stylesheet"
       href="/node_modules/@vscode/codicons/dist/codicon.css"
       id="vscode-codicon-stylesheet"
-    >
+    />
     <script
       type="module"
       src="/node_modules/@vscode-elements/webview-playground/dist/index.js"
diff --git a/dev/vscode-single-select/select-mode/sync-options.html b/dev/vscode-single-select/select-mode/sync-options.html
index 69353f6c8..3cc439ef1 100644
--- a/dev/vscode-single-select/select-mode/sync-options.html
+++ b/dev/vscode-single-select/select-mode/sync-options.html
@@ -1,14 +1,14 @@
 <!doctype html>
 <html lang="en">
   <head>
-    <meta charset="UTF-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>VSCode Elements</title>
     <link
       rel="stylesheet"
       href="/node_modules/@vscode/codicons/dist/codicon.css"
       id="vscode-codicon-stylesheet"
-    >
+    />
     <script
       type="module"
       src="/node_modules/@vscode-elements/webview-playground/dist/index.js"
diff --git a/dev/vscode-split-layout/csp.html b/dev/vscode-split-layout/csp.html
index f97e1e2e2..4c41aa8c0 100644
--- a/dev/vscode-split-layout/csp.html
+++ b/dev/vscode-split-layout/csp.html
@@ -1,8 +1,8 @@
 <!doctype html>
 <html lang="en">
   <head>
-    <meta charset="UTF-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <meta
       http-equiv="Content-Security-Policy"
       content="
@@ -13,14 +13,14 @@
         img-src data:;
         style-src 'nonce-abc123';
         style-src-elem 'nonce-abc123'"
-    >
+    />
     <title>VSCode Elements</title>
     <link
       rel="stylesheet"
       href="/node_modules/@vscode/codicons/dist/codicon.css"
       id="vscode-codicon-stylesheet"
       nonce="abc123"
-    >
+    />
     <style nonce="abc123">
       vscode-split-layout {
         width: 500px;
diff --git a/dev/vscode-split-layout/default.html b/dev/vscode-split-layout/default.html
index 684fa008b..ab03e0a3e 100644
--- a/dev/vscode-split-layout/default.html
+++ b/dev/vscode-split-layout/default.html
@@ -1,14 +1,14 @@
 <!doctype html>
 <html lang="en">
   <head>
-    <meta charset="UTF-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>Split Layout</title>
     <link
       rel="stylesheet"
       href="/node_modules/@vscode/codicons/dist/codicon.css"
       id="vscode-codicon-stylesheet"
-    >
+    />
     <script
       type="module"
       src="/node_modules/@vscode-elements/webview-playground/dist/index.js"
diff --git a/dev/vscode-split-layout/fallback-styles.html b/dev/vscode-split-layout/fallback-styles.html
index 51099a5cd..051bf9f48 100644
--- a/dev/vscode-split-layout/fallback-styles.html
+++ b/dev/vscode-split-layout/fallback-styles.html
@@ -1,14 +1,14 @@
 <!doctype html>
 <html lang="en">
   <head>
-    <meta charset="UTF-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>Split Layout</title>
     <link
       rel="stylesheet"
       href="/node_modules/@vscode/codicons/dist/codicon.css"
       id="vscode-codicon-stylesheet"
-    >
+    />
     <script type="module" src="/dist/vscode-split-layout/index.js"></script>
     <script type="module" src="/dist/vscode-scrollable/index.js"></script>
     <script>
diff --git a/dev/vscode-split-layout/fluid.html b/dev/vscode-split-layout/fluid.html
index 9d0f88968..493a0a329 100644
--- a/dev/vscode-split-layout/fluid.html
+++ b/dev/vscode-split-layout/fluid.html
@@ -1,14 +1,14 @@
 <!doctype html>
 <html lang="en">
   <head>
-    <meta charset="UTF-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>Split Layout</title>
     <link
       rel="stylesheet"
       href="/node_modules/@vscode/codicons/dist/codicon.css"
       id="vscode-codicon-stylesheet"
-    >
+    />
     <script
       type="module"
       src="/node_modules/@vscode-elements/webview-playground/dist/index.js"
diff --git a/dev/vscode-split-layout/horizontal.html b/dev/vscode-split-layout/horizontal.html
index 11d5967c3..cf781ec63 100644
--- a/dev/vscode-split-layout/horizontal.html
+++ b/dev/vscode-split-layout/horizontal.html
@@ -1,14 +1,14 @@
 <!doctype html>
 <html lang="en">
   <head>
-    <meta charset="UTF-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>Split Layout</title>
     <link
       rel="stylesheet"
       href="/node_modules/@vscode/codicons/dist/codicon.css"
       id="vscode-codicon-stylesheet"
-    >
+    />
     <script
       type="module"
       src="/node_modules/@vscode-elements/webview-playground/dist/index.js"
diff --git a/dev/vscode-split-layout/min-size.html b/dev/vscode-split-layout/min-size.html
index ade68782a..fb8b833f7 100644
--- a/dev/vscode-split-layout/min-size.html
+++ b/dev/vscode-split-layout/min-size.html
@@ -1,14 +1,14 @@
 <!doctype html>
 <html lang="en">
   <head>
-    <meta charset="UTF-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>Split Layout - Min Size</title>
     <link
       rel="stylesheet"
       href="/node_modules/@vscode/codicons/dist/codicon.css"
       id="vscode-codicon-stylesheet"
-    >
+    />
     <script
       type="module"
       src="/node_modules/@vscode-elements/webview-playground/dist/index.js"
diff --git a/dev/vscode-split-layout/nested.html b/dev/vscode-split-layout/nested.html
index 8b0459dbc..4e395704f 100644
--- a/dev/vscode-split-layout/nested.html
+++ b/dev/vscode-split-layout/nested.html
@@ -1,14 +1,14 @@
 <!doctype html>
 <html lang="en">
   <head>
-    <meta charset="UTF-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>Split Layout</title>
     <link
       rel="stylesheet"
       href="/node_modules/@vscode/codicons/dist/codicon.css"
       id="vscode-codicon-stylesheet"
-    >
+    />
     <script
       type="module"
       src="/node_modules/@vscode-elements/webview-playground/dist/index.js"
diff --git a/dev/vscode-split-layout/vertical.html b/dev/vscode-split-layout/vertical.html
index 9567b9313..065cc36a6 100644
--- a/dev/vscode-split-layout/vertical.html
+++ b/dev/vscode-split-layout/vertical.html
@@ -1,14 +1,14 @@
 <!doctype html>
 <html lang="en">
   <head>
-    <meta charset="UTF-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>Split Layout</title>
     <link
       rel="stylesheet"
       href="/node_modules/@vscode/codicons/dist/codicon.css"
       id="vscode-codicon-stylesheet"
-    >
+    />
     <script
       type="module"
       src="/node_modules/@vscode-elements/webview-playground/dist/index.js"
diff --git a/dev/vscode-table/561-col-runtime-error.html b/dev/vscode-table/561-col-runtime-error.html
index c543f5e17..0d60bf326 100644
--- a/dev/vscode-table/561-col-runtime-error.html
+++ b/dev/vscode-table/561-col-runtime-error.html
@@ -1,14 +1,14 @@
 <!doctype html>
 <html lang="en">
   <head>
-    <meta charset="UTF-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>VSCode Elements</title>
     <link
       rel="stylesheet"
       href="/node_modules/@vscode/codicons/dist/codicon.css"
       id="vscode-codicon-stylesheet"
-    >
+    />
     <script
       type="module"
       src="/node_modules/@vscode-elements/webview-playground/dist/index.js"
diff --git a/dev/vscode-table/basic-example.html b/dev/vscode-table/basic-example.html
index 9cb5b3372..b11110f70 100644
--- a/dev/vscode-table/basic-example.html
+++ b/dev/vscode-table/basic-example.html
@@ -1,14 +1,14 @@
 <!doctype html>
 <html lang="en">
   <head>
-    <meta charset="UTF-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>VSCode Elements</title>
     <link
       rel="stylesheet"
       href="/node_modules/@vscode/codicons/dist/codicon.css"
       id="vscode-codicon-stylesheet"
-    >
+    />
     <style>
       .table {
         width: 500px;
diff --git a/dev/vscode-table/collapsible-table.html b/dev/vscode-table/collapsible-table.html
index ef34a6a38..d6b737a9f 100644
--- a/dev/vscode-table/collapsible-table.html
+++ b/dev/vscode-table/collapsible-table.html
@@ -1,11 +1,11 @@
 <!doctype html>
 <html lang="en">
   <head>
-    <meta charset="utf-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
-    <meta http-equiv="X-UA-Compatible" content="ie=edge">
+    <meta charset="utf-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
+    <meta http-equiv="X-UA-Compatible" content="ie=edge" />
     <title>&lt;vscode-table&gt; Demo</title>
-    <link rel="stylesheet" href="/dev-assets/default-webview-styles.css">
+    <link rel="stylesheet" href="/dev-assets/default-webview-styles.css" />
     <script type="module" src="/dev-assets/component-preview.js"></script>
     <script type="module" src="/dist/vscode-split-layout/index.js"></script>
     <script type="module" src="/dist/vscode-scrollable/index.js"></script>
diff --git a/dev/vscode-table/fallback-styles.html b/dev/vscode-table/fallback-styles.html
index 8dd71e34a..1841a9453 100644
--- a/dev/vscode-table/fallback-styles.html
+++ b/dev/vscode-table/fallback-styles.html
@@ -1,14 +1,14 @@
 <!doctype html>
 <html lang="en">
   <head>
-    <meta charset="UTF-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>VSCode Elements</title>
     <link
       rel="stylesheet"
       href="/node_modules/@vscode/codicons/dist/codicon.css"
       id="vscode-codicon-stylesheet"
-    >
+    />
     <style>
       .table {
         width: 500px;
diff --git a/dev/vscode-table/issue-516.html b/dev/vscode-table/issue-516.html
index 2cd283d7a..fc6fb353f 100644
--- a/dev/vscode-table/issue-516.html
+++ b/dev/vscode-table/issue-516.html
@@ -1,14 +1,14 @@
 <!doctype html>
 <html lang="en">
   <head>
-    <meta charset="UTF-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>VSCode Elements</title>
     <link
       rel="stylesheet"
       href="/node_modules/@vscode/codicons/dist/codicon.css"
       id="vscode-codicon-stylesheet"
-    >
+    />
     <script
       type="module"
       src="/node_modules/@vscode-elements/webview-playground/dist/index.js"
diff --git a/dev/vscode-table/other-examples.html b/dev/vscode-table/other-examples.html
index 9d7fa9109..cb40dfe16 100644
--- a/dev/vscode-table/other-examples.html
+++ b/dev/vscode-table/other-examples.html
@@ -1,11 +1,11 @@
 <!doctype html>
 <html lang="en">
   <head>
-    <meta charset="utf-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
-    <meta http-equiv="X-UA-Compatible" content="ie=edge">
+    <meta charset="utf-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
+    <meta http-equiv="X-UA-Compatible" content="ie=edge" />
     <title>&lt;vscode-table&gt; Demo</title>
-    <link rel="stylesheet" href="../dev-assets/default-webview-styles.css">
+    <link rel="stylesheet" href="../dev-assets/default-webview-styles.css" />
     <script type="module" src="../dev-assets/component-preview.js"></script>
     <script type="module" src="../dist/vscode-split-layout/index.js"></script>
     <script type="module" src="../dist/vscode-scrollable/index.js"></script>
@@ -303,7 +303,7 @@ <h2 class="story-title">Huge table</h2>
             display: none;
           }
         </style>
-        <input type="checkbox" id="toggle-delayed-resizing"><label
+        <input type="checkbox" id="toggle-delayed-resizing" /><label
           for="toggle-delayed-resizing"
           >Delayed resizing</label
         >
@@ -5356,7 +5356,7 @@ <h2 class="story-title">Huge table</h2>
             white-space: normal;
           }
         </style>
-        <input type="checkbox" id="toggle-delayed-resizing-2"><label
+        <input type="checkbox" id="toggle-delayed-resizing-2" /><label
           for="toggle-delayed-resizing-2"
           >Delayed resizing</label
         >
diff --git a/dev/vscode-table/resizable.html b/dev/vscode-table/resizable.html
index 138c21a08..fe776b46a 100644
--- a/dev/vscode-table/resizable.html
+++ b/dev/vscode-table/resizable.html
@@ -1,8 +1,8 @@
 <!doctype html>
 <html lang="en">
   <head>
-    <meta charset="UTF-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>VSCode Elements</title>
     <meta
       http-equiv="Content-Security-Policy"
@@ -15,13 +15,13 @@
         style-src-elem 'nonce-abc123';
         connect-src ws://localhost:8000/wds
       "
-    >
+    />
     <link
       rel="stylesheet"
       href="/node_modules/@vscode/codicons/dist/codicon.css"
       id="vscode-codicon-stylesheet"
       nonce="abc123"
-    >
+    />
     <style nonce="abc123">
       .table {
         width: 500px;
diff --git a/dev/vscode-table/resize-empty-table.html b/dev/vscode-table/resize-empty-table.html
index d5270daad..0c7855cb3 100644
--- a/dev/vscode-table/resize-empty-table.html
+++ b/dev/vscode-table/resize-empty-table.html
@@ -1,14 +1,14 @@
 <!doctype html>
 <html lang="en">
   <head>
-    <meta charset="UTF-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>VSCode Elements</title>
     <link
       rel="stylesheet"
       href="/node_modules/@vscode/codicons/dist/codicon.css"
       id="vscode-codicon-stylesheet"
-    >
+    />
     <script
       type="module"
       src="/node_modules/@vscode-elements/webview-playground/dist/index.js"
diff --git a/dev/vscode-table/scrollable-body-bug.html b/dev/vscode-table/scrollable-body-bug.html
index 72cbc51a1..3b46cbd5a 100644
--- a/dev/vscode-table/scrollable-body-bug.html
+++ b/dev/vscode-table/scrollable-body-bug.html
@@ -1,14 +1,14 @@
 <!doctype html>
 <html lang="en">
   <head>
-    <meta charset="UTF-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>VSCode Elements</title>
     <link
       rel="stylesheet"
       href="/node_modules/@vscode/codicons/dist/codicon.css"
       id="vscode-codicon-stylesheet"
-    >
+    />
     <script
       type="module"
       src="/node_modules/@vscode-elements/webview-playground/dist/index.js"
diff --git a/dev/vscode-table/scrollable-content.html b/dev/vscode-table/scrollable-content.html
index ac6aa6012..d03e94605 100644
--- a/dev/vscode-table/scrollable-content.html
+++ b/dev/vscode-table/scrollable-content.html
@@ -1,11 +1,11 @@
 <!doctype html>
 <html lang="en">
   <head>
-    <meta charset="utf-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
-    <meta http-equiv="X-UA-Compatible" content="ie=edge">
+    <meta charset="utf-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
+    <meta http-equiv="X-UA-Compatible" content="ie=edge" />
     <title>&lt;vscode-table&gt; Demo</title>
-    <link rel="stylesheet" href="/dev-assets/default-webview-styles.css">
+    <link rel="stylesheet" href="/dev-assets/default-webview-styles.css" />
     <script type="module" src="/dev-assets/component-preview.js"></script>
     <script type="module" src="/dist/vscode-split-layout/index.js"></script>
     <script
diff --git a/dev/vscode-table/shift-table-columns.html b/dev/vscode-table/shift-table-columns.html
index 547e680aa..72844098f 100644
--- a/dev/vscode-table/shift-table-columns.html
+++ b/dev/vscode-table/shift-table-columns.html
@@ -1,15 +1,15 @@
 <!doctype html>
 <html lang="en">
   <head>
-    <meta charset="UTF-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>VSCode Elements</title>
     <link
       rel="stylesheet"
       href="/node_modules/@vscode/codicons/dist/codicon.css"
       id="vscode-codicon-stylesheet"
       nonce="abc123"
-    >
+    />
     <style nonce="abc123">
       .table {
         width: 500px;
diff --git a/dev/vscode-table/style-property-map-directive.html b/dev/vscode-table/style-property-map-directive.html
index 7167b4773..131d098d1 100644
--- a/dev/vscode-table/style-property-map-directive.html
+++ b/dev/vscode-table/style-property-map-directive.html
@@ -1,14 +1,14 @@
 <!doctype html>
 <html lang="en">
   <head>
-    <meta charset="UTF-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>VSCode Elements</title>
     <link
       rel="stylesheet"
       href="/node_modules/@vscode/codicons/dist/codicon.css"
       id="vscode-codicon-stylesheet"
-    >
+    />
     <script
       type="module"
       src="/node_modules/@vscode-elements/webview-playground/dist/index.js"
diff --git a/dev/vscode-tabs/basic-example.html b/dev/vscode-tabs/basic-example.html
index 6646162ce..ce7f6b3f1 100644
--- a/dev/vscode-tabs/basic-example.html
+++ b/dev/vscode-tabs/basic-example.html
@@ -1,14 +1,14 @@
 <!doctype html>
 <html lang="en">
   <head>
-    <meta charset="UTF-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>VSCode Elements</title>
     <link
       rel="stylesheet"
       href="/node_modules/@vscode/codicons/dist/codicon.css"
       id="vscode-codicon-stylesheet"
-    >
+    />
     <script
       type="module"
       src="/node_modules/@vscode-elements/webview-playground/dist/index.js"
diff --git a/dev/vscode-tabs/fallback-styles.html b/dev/vscode-tabs/fallback-styles.html
index b6dc7611c..9249ed1bd 100644
--- a/dev/vscode-tabs/fallback-styles.html
+++ b/dev/vscode-tabs/fallback-styles.html
@@ -1,14 +1,14 @@
 <!doctype html>
 <html lang="en">
   <head>
-    <meta charset="UTF-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>VSCode Elements</title>
     <link
       rel="stylesheet"
       href="/node_modules/@vscode/codicons/dist/codicon.css"
       id="vscode-codicon-stylesheet"
-    >
+    />
     <script type="module" src="/dist/main.js"></script>
     <script>
       const logEvents = (selector, eventType) => {
diff --git a/dev/vscode-tabs/panel-style.html b/dev/vscode-tabs/panel-style.html
index 8d5c04182..0f3370078 100644
--- a/dev/vscode-tabs/panel-style.html
+++ b/dev/vscode-tabs/panel-style.html
@@ -1,14 +1,14 @@
 <!doctype html>
 <html lang="en">
   <head>
-    <meta charset="UTF-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>VSCode Elements</title>
     <link
       rel="stylesheet"
       href="/node_modules/@vscode/codicons/dist/codicon.css"
       id="vscode-codicon-stylesheet"
-    >
+    />
     <script
       type="module"
       src="/node_modules/@vscode-elements/webview-playground/dist/index.js"
diff --git a/dev/vscode-textarea/a11y.html b/dev/vscode-textarea/a11y.html
index abc9aa588..2f7623815 100644
--- a/dev/vscode-textarea/a11y.html
+++ b/dev/vscode-textarea/a11y.html
@@ -1,14 +1,14 @@
 <!doctype html>
 <html lang="en">
   <head>
-    <meta charset="UTF-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>VSCode Elements</title>
     <link
       rel="stylesheet"
       href="/node_modules/@vscode/codicons/dist/codicon.css"
       id="vscode-codicon-stylesheet"
-    >
+    />
     <script
       type="module"
       src="/node_modules/@vscode-elements/webview-playground/dist/index.js"
diff --git a/dev/vscode-textarea/csp.html b/dev/vscode-textarea/csp.html
index 4eb31e481..159b6e525 100644
--- a/dev/vscode-textarea/csp.html
+++ b/dev/vscode-textarea/csp.html
@@ -1,8 +1,8 @@
 <!doctype html>
 <html lang="en">
   <head>
-    <meta charset="UTF-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <meta
       http-equiv="Content-Security-Policy"
       content="
@@ -13,14 +13,14 @@
         img-src data:;
         style-src 'nonce-abc123';
         style-src-elem 'nonce-abc123'"
-    >
+    />
     <title>VSCode Elements</title>
     <link
       rel="stylesheet"
       href="/node_modules/@vscode/codicons/dist/codicon.css"
       id="vscode-codicon-stylesheet"
       nonce="abc123"
-    >
+    />
     <style nonce="abc123">
       vscode-scrollable {
         width: 200px;
diff --git a/dev/vscode-textfield/basic-example.html b/dev/vscode-textfield/basic-example.html
index f1283ea21..edc6822dc 100644
--- a/dev/vscode-textfield/basic-example.html
+++ b/dev/vscode-textfield/basic-example.html
@@ -1,14 +1,14 @@
 <!doctype html>
 <html lang="en">
   <head>
-    <meta charset="utf-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <meta charset="utf-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>&lt;vscode-textfield&gt; Demo</title>
     <link
       rel="stylesheet"
       href="/node_modules/@vscode/codicons/dist/codicon.css"
       id="vscode-codicon-stylesheet"
-    >
+    />
     <script
       type="module"
       src="/node_modules/@vscode-elements/webview-playground/dist/index.js"
diff --git a/dev/vscode-textfield/events.html b/dev/vscode-textfield/events.html
index c61eab409..d006066f3 100644
--- a/dev/vscode-textfield/events.html
+++ b/dev/vscode-textfield/events.html
@@ -1,14 +1,14 @@
 <!doctype html>
 <html lang="en">
   <head>
-    <meta charset="UTF-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>Textfield</title>
     <link
       rel="stylesheet"
       href="/node_modules/@vscode/codicons/dist/codicon.css"
       id="vscode-codicon-stylesheet"
-    >
+    />
     <script
       type="module"
       src="/node_modules/@vscode-elements/webview-playground/dist/index.js"
diff --git a/dev/vscode-textfield/fallback-styles.html b/dev/vscode-textfield/fallback-styles.html
index 68acbb928..e7b2c82ae 100644
--- a/dev/vscode-textfield/fallback-styles.html
+++ b/dev/vscode-textfield/fallback-styles.html
@@ -1,14 +1,14 @@
 <!doctype html>
 <html lang="en">
   <head>
-    <meta charset="UTF-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>VSCode Elements</title>
     <link
       rel="stylesheet"
       href="/node_modules/@vscode/codicons/dist/codicon.css"
       id="vscode-codicon-stylesheet"
-    >
+    />
     <script type="module" src="/dist/main.js"></script>
     <script>
       const logEvents = (selector, eventType) => {
diff --git a/dev/vscode-textfield/file-input.html b/dev/vscode-textfield/file-input.html
index 09a58d499..0f6c536ce 100644
--- a/dev/vscode-textfield/file-input.html
+++ b/dev/vscode-textfield/file-input.html
@@ -1,14 +1,14 @@
 <!doctype html>
 <html lang="en">
   <head>
-    <meta charset="utf-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <meta charset="utf-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>&lt;vscode-textfield&gt; Demo</title>
     <link
       rel="stylesheet"
       href="/node_modules/@vscode/codicons/dist/codicon.css"
       id="vscode-codicon-stylesheet"
-    >
+    />
     <script
       type="module"
       src="/node_modules/@vscode-elements/webview-playground/dist/index.js"
diff --git a/dev/vscode-textfield/validation-min-validation.html b/dev/vscode-textfield/validation-min-validation.html
index 4e899bf30..48cc51c64 100644
--- a/dev/vscode-textfield/validation-min-validation.html
+++ b/dev/vscode-textfield/validation-min-validation.html
@@ -1,14 +1,14 @@
 <!doctype html>
 <html lang="en">
   <head>
-    <meta charset="utf-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <meta charset="utf-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>&lt;vscode-textfield&gt; Demo</title>
     <link
       rel="stylesheet"
       href="/node_modules/@vscode/codicons/dist/codicon.css"
       id="vscode-codicon-stylesheet"
-    >
+    />
     <script
       type="module"
       src="/node_modules/@vscode-elements/webview-playground/dist/index.js"
@@ -35,7 +35,7 @@ <h2>File input</h2>
           min="10"
           type="number"
         ></vscode-textfield>
-        <input type="number" min="10" id="min-test2" name="min-test2">
+        <input type="number" min="10" id="min-test2" name="min-test2" />
       </vscode-demo>
     </main>
   </body>
diff --git a/dev/vscode-textfield/validation-on-value-change.html b/dev/vscode-textfield/validation-on-value-change.html
index 04bac8707..63031f34c 100644
--- a/dev/vscode-textfield/validation-on-value-change.html
+++ b/dev/vscode-textfield/validation-on-value-change.html
@@ -1,14 +1,14 @@
 <!doctype html>
 <html lang="en">
   <head>
-    <meta charset="utf-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <meta charset="utf-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>&lt;vscode-textfield&gt; Demo</title>
     <link
       rel="stylesheet"
       href="/node_modules/@vscode/codicons/dist/codicon.css"
       id="vscode-codicon-stylesheet"
-    >
+    />
     <script
       type="module"
       src="/node_modules/@vscode-elements/webview-playground/dist/index.js"
@@ -35,7 +35,7 @@ <h2>File input</h2>
           placeholder="/path"
           pattern="^(/.*)?$"
         ></vscode-textfield>
-        <input type="text" id="path2" name="path2" pattern="^(/.*)?$">
+        <input type="text" id="path2" name="path2" pattern="^(/.*)?$" />
       </vscode-demo>
     </main>
   </body>
diff --git a/dev/vscode-toolbar-button/basic-example.html b/dev/vscode-toolbar-button/basic-example.html
index 1cc726082..08a3f9ec1 100644
--- a/dev/vscode-toolbar-button/basic-example.html
+++ b/dev/vscode-toolbar-button/basic-example.html
@@ -1,14 +1,14 @@
 <!doctype html>
 <html lang="en">
   <head>
-    <meta charset="UTF-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>VSCode Elements</title>
     <link
       rel="stylesheet"
       href="/node_modules/@vscode/codicons/dist/codicon.css"
       id="vscode-codicon-stylesheet"
-    >
+    />
     <script
       type="module"
       src="/node_modules/@vscode-elements/webview-playground/dist/index.js"
diff --git a/dev/vscode-toolbar-button/change-event.html b/dev/vscode-toolbar-button/change-event.html
index 502b8f81a..9ece08298 100644
--- a/dev/vscode-toolbar-button/change-event.html
+++ b/dev/vscode-toolbar-button/change-event.html
@@ -1,14 +1,14 @@
 <!doctype html>
 <html lang="en">
   <head>
-    <meta charset="UTF-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>VSCode Elements</title>
     <link
       rel="stylesheet"
       href="/node_modules/@vscode/codicons/dist/codicon.css"
       id="vscode-codicon-stylesheet"
-    >
+    />
     <script
       type="module"
       src="/node_modules/@vscode-elements/webview-playground/dist/index.js"
diff --git a/dev/vscode-tree/basic-example.html b/dev/vscode-tree/basic-example.html
index 18ad830ec..2ef89ca23 100644
--- a/dev/vscode-tree/basic-example.html
+++ b/dev/vscode-tree/basic-example.html
@@ -1,14 +1,14 @@
 <!doctype html>
 <html lang="en">
   <head>
-    <meta charset="UTF-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>VSCode Elements</title>
     <link
       rel="stylesheet"
       href="/node_modules/@vscode/codicons/dist/codicon.css"
       id="vscode-codicon-stylesheet"
-    >
+    />
     <script
       type="module"
       src="/node_modules/@vscode-elements/webview-playground/dist/index.js"
diff --git a/dev/vscode-tree/custom-styles.html b/dev/vscode-tree/custom-styles.html
index e2d8008bc..00ca79f6f 100644
--- a/dev/vscode-tree/custom-styles.html
+++ b/dev/vscode-tree/custom-styles.html
@@ -1,14 +1,14 @@
 <!doctype html>
 <html lang="en">
   <head>
-    <meta charset="UTF-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>VSCode Elements</title>
     <link
       rel="stylesheet"
       href="/node_modules/@vscode/codicons/dist/codicon.css"
       id="vscode-codicon-stylesheet"
-    >
+    />
     <script
       type="module"
       src="/node_modules/@vscode-elements/webview-playground/dist/index.js"
diff --git a/dev/vscode-tree/default-active-item.html b/dev/vscode-tree/default-active-item.html
index 1a9829bff..25725115c 100644
--- a/dev/vscode-tree/default-active-item.html
+++ b/dev/vscode-tree/default-active-item.html
@@ -1,14 +1,14 @@
 <!doctype html>
 <html lang="en">
   <head>
-    <meta charset="UTF-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>VSCode Elements</title>
     <link
       rel="stylesheet"
       href="/node_modules/@vscode/codicons/dist/codicon.css"
       id="vscode-codicon-stylesheet"
-    >
+    />
     <script
       type="module"
       src="/node_modules/@vscode-elements/webview-playground/dist/index.js"
@@ -28,7 +28,7 @@ <h1>Basic example</h1>
     <main>
       <vscode-demo>
         <div style="background-color: var(--vscode-sideBar-background)">
-          <input type="text">
+          <input type="text" />
           <vscode-tree arrows indent="16" id="basic-example">
             <vscode-tree-item>
               <vscode-icon name="folder" slot="icon-branch"></vscode-icon>
@@ -220,7 +220,7 @@ <h1>Basic example</h1>
               dolor
             </vscode-tree-item>
           </vscode-tree>
-          <input type="text">
+          <input type="text" />
           <button type="button" id="bt-set-active">Set active</button>
           <script type="module">
             const bt = document.querySelector('#bt-set-active');
diff --git a/dev/vscode-tree/double-click-expand-mode.html b/dev/vscode-tree/double-click-expand-mode.html
index 8305d2c7b..8cb4ffd29 100644
--- a/dev/vscode-tree/double-click-expand-mode.html
+++ b/dev/vscode-tree/double-click-expand-mode.html
@@ -1,14 +1,14 @@
 <!doctype html>
 <html lang="en">
   <head>
-    <meta charset="UTF-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>VSCode Elements</title>
     <link
       rel="stylesheet"
       href="/node_modules/@vscode/codicons/dist/codicon.css"
       id="vscode-codicon-stylesheet"
-    >
+    />
     <script
       type="module"
       src="/node_modules/@vscode-elements/webview-playground/dist/index.js"
@@ -28,7 +28,7 @@ <h1>Expand mode: doubleClick</h1>
     <main>
       <vscode-demo>
         <div style="background-color: var(--vscode-sideBar-background)">
-          <input type="text">
+          <input type="text" />
           <vscode-tree
             arrows
             indent="16"
@@ -227,7 +227,7 @@ <h1>Expand mode: doubleClick</h1>
               dolor
             </vscode-tree-item>
           </vscode-tree>
-          <input type="text">
+          <input type="text" />
         </div>
       </vscode-demo>
     </main>
diff --git a/dev/vscode-tree/events.html b/dev/vscode-tree/events.html
index 8be9c102e..0c4ec7610 100644
--- a/dev/vscode-tree/events.html
+++ b/dev/vscode-tree/events.html
@@ -1,14 +1,14 @@
 <!doctype html>
 <html lang="en">
   <head>
-    <meta charset="UTF-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>VSCode Elements</title>
     <link
       rel="stylesheet"
       href="/node_modules/@vscode/codicons/dist/codicon.css"
       id="vscode-codicon-stylesheet"
-    >
+    />
     <script
       type="module"
       src="/node_modules/@vscode-elements/webview-playground/dist/index.js"
@@ -28,7 +28,7 @@ <h1>Events</h1>
     <main>
       <vscode-demo>
         <div style="background-color: var(--vscode-sideBar-background)">
-          <input type="text">
+          <input type="text" />
           <vscode-tree
             arrows
             indent="16"
@@ -226,7 +226,7 @@ <h1>Events</h1>
               dolor
             </vscode-tree-item>
           </vscode-tree>
-          <input type="text">
+          <input type="text" />
           <script type="module">
             logEvents('vscode-tree', 'vsc-list-select');
           </script>
diff --git a/dev/vscode-tree/expand-all-collapse-all.html b/dev/vscode-tree/expand-all-collapse-all.html
index 540bcdb8b..b7e6e6ecc 100644
--- a/dev/vscode-tree/expand-all-collapse-all.html
+++ b/dev/vscode-tree/expand-all-collapse-all.html
@@ -1,14 +1,14 @@
 <!doctype html>
 <html lang="en">
   <head>
-    <meta charset="UTF-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>VSCode Elements</title>
     <link
       rel="stylesheet"
       href="/node_modules/@vscode/codicons/dist/codicon.css"
       id="vscode-codicon-stylesheet"
-    >
+    />
     <script
       type="module"
       src="/node_modules/@vscode-elements/webview-playground/dist/index.js"
diff --git a/dev/vscode-tree/fallback-styles.html b/dev/vscode-tree/fallback-styles.html
index 7ccb44683..566ab4440 100644
--- a/dev/vscode-tree/fallback-styles.html
+++ b/dev/vscode-tree/fallback-styles.html
@@ -1,14 +1,14 @@
 <!doctype html>
 <html lang="en">
   <head>
-    <meta charset="UTF-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>VSCode Elements</title>
     <link
       rel="stylesheet"
       href="/node_modules/@vscode/codicons/dist/codicon.css"
       id="vscode-codicon-stylesheet"
-    >
+    />
     <script type="module" src="/dist/main.js"></script>
     <script>
       const logEvents = (selector, eventType) => {
diff --git a/dev/vscode-tree/guides-has-arrows.html b/dev/vscode-tree/guides-has-arrows.html
index 7008541c8..8482f3040 100644
--- a/dev/vscode-tree/guides-has-arrows.html
+++ b/dev/vscode-tree/guides-has-arrows.html
@@ -1,14 +1,14 @@
 <!doctype html>
 <html lang="en">
   <head>
-    <meta charset="UTF-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>VSCode Elements</title>
     <link
       rel="stylesheet"
       href="/node_modules/@vscode/codicons/dist/codicon.css"
       id="vscode-codicon-stylesheet"
-    >
+    />
     <script
       type="module"
       src="/node_modules/@vscode-elements/webview-playground/dist/index.js"
@@ -28,7 +28,7 @@ <h1>Basic example</h1>
     <main>
       <vscode-demo>
         <div style="background-color: var(--vscode-sideBar-background)">
-          <input type="text">
+          <input type="text" />
           <vscode-tree
             arrows
             indent="16"
@@ -225,7 +225,7 @@ <h1>Basic example</h1>
               dolor
             </vscode-tree-item>
           </vscode-tree>
-          <input type="text">
+          <input type="text" />
           <button type="button" id="bt-set-active">Set active</button>
           <script type="module">
             const bt = document.querySelector('#bt-set-active');
diff --git a/dev/vscode-tree/guides-wo-arrows.html b/dev/vscode-tree/guides-wo-arrows.html
index 2d2270df4..7921e79e8 100644
--- a/dev/vscode-tree/guides-wo-arrows.html
+++ b/dev/vscode-tree/guides-wo-arrows.html
@@ -1,14 +1,14 @@
 <!doctype html>
 <html lang="en">
   <head>
-    <meta charset="UTF-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>VSCode Elements</title>
     <link
       rel="stylesheet"
       href="/node_modules/@vscode/codicons/dist/codicon.css"
       id="vscode-codicon-stylesheet"
-    >
+    />
     <script
       type="module"
       src="/node_modules/@vscode-elements/webview-playground/dist/index.js"
@@ -28,7 +28,7 @@ <h1>Basic example</h1>
     <main>
       <vscode-demo>
         <div style="background-color: var(--vscode-sideBar-background)">
-          <input type="text">
+          <input type="text" />
           <vscode-tree indent="16" indent-guides id="basic-example">
             <vscode-tree-item>
               <vscode-icon name="folder" slot="icon-branch"></vscode-icon>
@@ -220,7 +220,7 @@ <h1>Basic example</h1>
               dolor
             </vscode-tree-item>
           </vscode-tree>
-          <input type="text">
+          <input type="text" />
           <button type="button" id="bt-set-active">Set active</button>
           <script type="module">
             const bt = document.querySelector('#bt-set-active');
diff --git a/dev/vscode-tree/hide-arrows.html b/dev/vscode-tree/hide-arrows.html
index 6ed9d1122..e529aabb6 100644
--- a/dev/vscode-tree/hide-arrows.html
+++ b/dev/vscode-tree/hide-arrows.html
@@ -1,14 +1,14 @@
 <!doctype html>
 <html lang="en">
   <head>
-    <meta charset="UTF-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>VSCode Elements</title>
     <link
       rel="stylesheet"
       href="/node_modules/@vscode/codicons/dist/codicon.css"
       id="vscode-codicon-stylesheet"
-    >
+    />
     <script
       type="module"
       src="/node_modules/@vscode-elements/webview-playground/dist/index.js"
diff --git a/dev/vscode-tree/hide-guides-and-arrows.html b/dev/vscode-tree/hide-guides-and-arrows.html
index 2ed49b8c9..41c968e1f 100644
--- a/dev/vscode-tree/hide-guides-and-arrows.html
+++ b/dev/vscode-tree/hide-guides-and-arrows.html
@@ -1,14 +1,14 @@
 <!doctype html>
 <html lang="en">
   <head>
-    <meta charset="UTF-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>VSCode Elements</title>
     <link
       rel="stylesheet"
       href="/node_modules/@vscode/codicons/dist/codicon.css"
       id="vscode-codicon-stylesheet"
-    >
+    />
     <script
       type="module"
       src="/node_modules/@vscode-elements/webview-playground/dist/index.js"
diff --git a/dev/vscode-tree/hide-guides.html b/dev/vscode-tree/hide-guides.html
index e6a812470..7ad83cb2a 100644
--- a/dev/vscode-tree/hide-guides.html
+++ b/dev/vscode-tree/hide-guides.html
@@ -1,14 +1,14 @@
 <!doctype html>
 <html lang="en">
   <head>
-    <meta charset="UTF-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>VSCode Elements</title>
     <link
       rel="stylesheet"
       href="/node_modules/@vscode/codicons/dist/codicon.css"
       id="vscode-codicon-stylesheet"
-    >
+    />
     <script
       type="module"
       src="/node_modules/@vscode-elements/webview-playground/dist/index.js"
diff --git a/dev/vscode-tree/multi-select.html b/dev/vscode-tree/multi-select.html
index 6e458d707..20f432d49 100644
--- a/dev/vscode-tree/multi-select.html
+++ b/dev/vscode-tree/multi-select.html
@@ -1,14 +1,14 @@
 <!doctype html>
 <html lang="en">
   <head>
-    <meta charset="UTF-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>VSCode Elements</title>
     <link
       rel="stylesheet"
       href="/node_modules/@vscode/codicons/dist/codicon.css"
       id="vscode-codicon-stylesheet"
-    >
+    />
     <script
       type="module"
       src="/node_modules/@vscode-elements/webview-playground/dist/index.js"
@@ -28,7 +28,7 @@ <h1>Basic example</h1>
     <main>
       <vscode-demo>
         <div style="background-color: var(--vscode-sideBar-background)">
-          <input type="text">
+          <input type="text" />
           <vscode-tree
             arrows
             indent="16"
@@ -226,7 +226,7 @@ <h1>Basic example</h1>
               dolor
             </vscode-tree-item>
           </vscode-tree>
-          <input type="text">
+          <input type="text" />
           <button type="button" id="bt-set-active">Set active</button>
           <script type="module">
             const bt = document.querySelector('#bt-set-active');
diff --git a/dev/vscode-tree/oversized-icon.html b/dev/vscode-tree/oversized-icon.html
index 43c91f184..6ded087ea 100644
--- a/dev/vscode-tree/oversized-icon.html
+++ b/dev/vscode-tree/oversized-icon.html
@@ -1,14 +1,14 @@
 <!doctype html>
 <html lang="en">
   <head>
-    <meta charset="UTF-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>VSCode Elements — Oversized Icon</title>
     <link
       rel="stylesheet"
       href="/node_modules/@vscode/codicons/dist/codicon.css"
       id="vscode-codicon-stylesheet"
-    >
+    />
     <script
       type="module"
       src="/node_modules/@vscode-elements/webview-playground/dist/index.js"
diff --git a/dev/vscode-tree/problems-tree.html b/dev/vscode-tree/problems-tree.html
index 9a2b04b12..dd911583b 100644
--- a/dev/vscode-tree/problems-tree.html
+++ b/dev/vscode-tree/problems-tree.html
@@ -1,14 +1,14 @@
 <!doctype html>
 <html lang="en">
   <head>
-    <meta charset="UTF-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>VSCode Elements — Problems Tree</title>
     <link
       rel="stylesheet"
       href="/node_modules/@vscode/codicons/dist/codicon.css"
       id="vscode-codicon-stylesheet"
-    >
+    />
     <script
       type="module"
       src="/node_modules/@vscode-elements/webview-playground/dist/index.js"
diff --git a/dev/vscode-tree/scm-tree.html b/dev/vscode-tree/scm-tree.html
index 50fd61614..584ee0b03 100644
--- a/dev/vscode-tree/scm-tree.html
+++ b/dev/vscode-tree/scm-tree.html
@@ -1,14 +1,14 @@
 <!doctype html>
 <html lang="en">
   <head>
-    <meta charset="UTF-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>VSCode Elements</title>
     <link
       rel="stylesheet"
       href="/node_modules/@vscode/codicons/dist/codicon.css"
       id="vscode-codicon-stylesheet"
-    >
+    />
     <script
       type="module"
       src="/node_modules/@vscode-elements/webview-playground/dist/index.js"
@@ -126,7 +126,7 @@ <h1>SCM (Demo)</h1>
       <div class="demo-controls">
         <div class="range-control">
           <label for="tree-width">Width</label>
-          <input id="tree-width" type="range" min="280" max="640" value="500">
+          <input id="tree-width" type="range" min="280" max="640" value="500" />
           <span id="tree-width-value">500px</span>
         </div>
       </div>
diff --git a/dev/vscode-tree/set-active-item.html b/dev/vscode-tree/set-active-item.html
index 8137d8b98..5b2784853 100644
--- a/dev/vscode-tree/set-active-item.html
+++ b/dev/vscode-tree/set-active-item.html
@@ -1,14 +1,14 @@
 <!doctype html>
 <html lang="en">
   <head>
-    <meta charset="UTF-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>VSCode Elements</title>
     <link
       rel="stylesheet"
       href="/node_modules/@vscode/codicons/dist/codicon.css"
       id="vscode-codicon-stylesheet"
-    >
+    />
     <script
       type="module"
       src="/node_modules/@vscode-elements/webview-playground/dist/index.js"
@@ -28,7 +28,7 @@ <h1>Basic example</h1>
     <main>
       <vscode-demo>
         <div style="background-color: var(--vscode-sideBar-background)">
-          <input type="text">
+          <input type="text" />
           <vscode-tree arrows indent="16" id="basic-example">
             <vscode-tree-item>
               <vscode-icon name="folder" slot="icon-branch"></vscode-icon>
@@ -220,7 +220,7 @@ <h1>Basic example</h1>
               dolor
             </vscode-tree-item>
           </vscode-tree>
-          <input type="text">
+          <input type="text" />
           <button type="button" id="bt-set-active">Set active</button>
           <script type="module">
             const bt = document.querySelector('#bt-set-active');
diff --git a/dev/vscode-tree/stress-test.html b/dev/vscode-tree/stress-test.html
index 3590f11ef..4888b3819 100644
--- a/dev/vscode-tree/stress-test.html
+++ b/dev/vscode-tree/stress-test.html
@@ -1,14 +1,14 @@
 <!doctype html>
 <html lang="en">
   <head>
-    <meta charset="UTF-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>VSCode Elements</title>
     <link
       rel="stylesheet"
       href="/node_modules/@vscode/codicons/dist/codicon.css"
       id="vscode-codicon-stylesheet"
-    >
+    />
     <script
       type="module"
       src="/node_modules/@vscode-elements/webview-playground/dist/index.js"
diff --git a/dev/vscode-tree/with-icons.html b/dev/vscode-tree/with-icons.html
index 194f600f8..b511001c8 100644
--- a/dev/vscode-tree/with-icons.html
+++ b/dev/vscode-tree/with-icons.html
@@ -1,14 +1,14 @@
 <!doctype html>
 <html lang="en">
   <head>
-    <meta charset="UTF-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>VSCode Elements</title>
     <link
       rel="stylesheet"
       href="/node_modules/@vscode/codicons/dist/codicon.css"
       id="vscode-codicon-stylesheet"
-    >
+    />
     <script
       type="module"
       src="/node_modules/@vscode-elements/webview-playground/dist/index.js"
diff --git a/src/vscode-checkbox/vscode-checkbox.ts b/src/vscode-checkbox/vscode-checkbox.ts
index d9a414f52..de8185903 100644
--- a/src/vscode-checkbox/vscode-checkbox.ts
+++ b/src/vscode-checkbox/vscode-checkbox.ts
@@ -306,7 +306,7 @@ export class VscodeCheckbox
             this.toggle ? (this.checked ? 'true' : 'false') : undefined
           )}
           value=${this.value}
-        >
+        />
         <div class=${iconClasses}>${iconContent}</div>
         <label for="input" class="label" @click=${this._handleClick}>
           <span class=${labelInnerClasses}>
diff --git a/src/vscode-icon/vscode-icon.ts b/src/vscode-icon/vscode-icon.ts
index a0abb3b84..9fb7471af 100644
--- a/src/vscode-icon/vscode-icon.ts
+++ b/src/vscode-icon/vscode-icon.ts
@@ -136,7 +136,7 @@ export class VscodeIcon extends VscElement {
         rel="stylesheet"
         href=${ifDefined(stylesheetHref)}
         nonce=${ifDefined(nonce)}
-      >
+      />
       ${wrapped}
     `;
   }
diff --git a/src/vscode-multi-select/vscode-multi-select.ts b/src/vscode-multi-select/vscode-multi-select.ts
index 5ac841860..7e8c523c3 100644
--- a/src/vscode-multi-select/vscode-multi-select.ts
+++ b/src/vscode-multi-select/vscode-multi-select.ts
@@ -366,7 +366,7 @@ export class VscodeMultiSelect
           @input=${this._onComboboxInputInput}
           @click=${this._onComboboxInputClick}
           @keydown=${this._onComboboxInputSpaceKeyDown}
-        >
+        />
         <button
           aria-label="Open the list of options"
           class="combobox-button"
diff --git a/src/vscode-radio/vscode-radio.ts b/src/vscode-radio/vscode-radio.ts
index d552dd800..67fa78db8 100644
--- a/src/vscode-radio/vscode-radio.ts
+++ b/src/vscode-radio/vscode-radio.ts
@@ -329,7 +329,7 @@ export class VscodeRadio
           ?checked=${this.checked}
           value=${this.value}
           tabindex=${this.tabIndex}
-        >
+        />
         <div class=${iconClasses}></div>
         <label for="input" class="label" @click=${this._handleClick}>
           <span class=${labelInnerClasses}>
diff --git a/src/vscode-single-select/vscode-single-select.ts b/src/vscode-single-select/vscode-single-select.ts
index 39a7f5dac..27dcf9c7e 100644
--- a/src/vscode-single-select/vscode-single-select.ts
+++ b/src/vscode-single-select/vscode-single-select.ts
@@ -392,7 +392,7 @@ export class VscodeSingleSelect
           @input=${this._onComboboxInputInput}
           @click=${this._onComboboxInputClick}
           @keydown=${this._onComboboxInputSpaceKeyDown}
-        >
+        />
         <button
           aria-label="Open the list of options"
           class="combobox-button"
diff --git a/src/vscode-textfield/vscode-textfield.ts b/src/vscode-textfield/vscode-textfield.ts
index 70b11d167..4aa97d4fd 100644
--- a/src/vscode-textfield/vscode-textfield.ts
+++ b/src/vscode-textfield/vscode-textfield.ts
@@ -378,7 +378,7 @@ export class VscodeTextfield
           @focus=${this._onFocus}
           @input=${this._onInput}
           @keydown=${this._onKeyDown}
-        >
+        />
         <slot name="content-after"></slot>
       </div>
     `;