diff --git a/js/plugins/alerts.js b/js/plugins/alerts.js
index 9551196..bed6c4b 100644
--- a/js/plugins/alerts.js
+++ b/js/plugins/alerts.js
@@ -6,9 +6,9 @@ tinymce.PluginManager.add('bs_alerts', function(editor, url) {
             tinymce.activeEditor.windowManager.open({
                 title: 'Add an alert',
                 url: url + '/alerts.html',
-                width: 480,
-                height: 180
-            });
+                width: Math.max(window.innerWidth * 0.4, 400),
+                height: Math.max(window.innerHeight * 0.6, 400)
+            })
         }
     });
 });
diff --git a/js/plugins/buttons.js b/js/plugins/buttons.js
index 092a892..401d1c1 100644
--- a/js/plugins/buttons.js
+++ b/js/plugins/buttons.js
@@ -6,8 +6,8 @@ tinymce.PluginManager.add('bs_buttons', function(editor, url) {
             tinymce.activeEditor.windowManager.open({
                 title: 'Buttons',
                 url: url + '/buttons.html',
-                width: 480,
-                height: 320
+                width: Math.max(window.innerWidth * 0.4, 400),
+                height: Math.max(window.innerHeight * 0.6, 400)
             });
         }
     });
diff --git a/js/plugins/grid.js b/js/plugins/grid.js
index feb4370..44a8631 100644
--- a/js/plugins/grid.js
+++ b/js/plugins/grid.js
@@ -16,8 +16,8 @@ tinymce.PluginManager.add('bs_grid', function(editor, url) {
                     tinymce.activeEditor.windowManager.open({
                         title: 'Custom Grid',
                         url: url + '/grid.html',
-                        width: 580,
-                        height: 420
+                        width: Math.max(window.innerWidth * 0.4, 400),
+                        height: Math.max(window.innerHeight * 0.6, 400)
                     });
                 }
             }
diff --git a/js/plugins/icons.js b/js/plugins/icons.js
index ddbab1b..70787d8 100644
--- a/js/plugins/icons.js
+++ b/js/plugins/icons.js
@@ -6,8 +6,8 @@ tinymce.PluginManager.add('bs_icons', function(editor, url) {
             tinymce.activeEditor.windowManager.open({
                 title : 'Icons',
                 url : url + '/icons.html',
-                width : 480,
-                height : 320
+                width: Math.max(window.innerWidth * 0.4, 400),
+                height: Math.max(window.innerHeight * 0.6, 400)
             });
         }
     });
diff --git a/js/plugins/labels.js b/js/plugins/labels.js
index fa7a4f4..78f63fe 100644
--- a/js/plugins/labels.js
+++ b/js/plugins/labels.js
@@ -7,8 +7,8 @@ tinymce.PluginManager.add('bs_labels', function(editor, url) {
             tinymce.activeEditor.windowManager.open({
                 title: 'Labels',
                 url: url + '/labels.html',
-                width: 480,
-                height: 320
+                width: Math.max(window.innerWidth * 0.4, 400),
+                height: Math.max(window.innerHeight * 0.6, 400)
             });
         }
     });
diff --git a/js/plugins/tabs.js b/js/plugins/tabs.js
index da18ec5..617ae0a 100644
--- a/js/plugins/tabs.js
+++ b/js/plugins/tabs.js
@@ -6,8 +6,8 @@ tinymce.PluginManager.add('bs_tabs', function(editor, url) {
             tinymce.activeEditor.windowManager.open({
                 title: 'Tabs',
                 url: url + '/tabs.html',
-                width: 480,
-                height: 320
+                width: Math.max(window.innerWidth * 0.4, 400),
+                height: Math.max(window.innerHeight * 0.6, 400)
             });
         }
     });
diff --git a/js/plugins/tooltip.js b/js/plugins/tooltip.js
index 2b2b167..215bdd8 100644
--- a/js/plugins/tooltip.js
+++ b/js/plugins/tooltip.js
@@ -6,8 +6,8 @@ tinymce.PluginManager.add('bs_tooltip', function(editor, url) {
             tinymce.activeEditor.windowManager.open({
                 title: 'Tooltip',
                 url: url + '/tooltip.html',
-                width: 480,
-                height: 320
+                width: Math.max(window.innerWidth * 0.4, 400),
+                height: Math.max(window.innerHeight * 0.6, 400)
             });
         }
     });