diff --git a/.vscode/settings.json b/.vscode/settings.json
new file mode 100644
index 0000000..6f3a291
--- /dev/null
+++ b/.vscode/settings.json
@@ -0,0 +1,3 @@
+{
+    "liveServer.settings.port": 5501
+}
\ No newline at end of file
diff --git a/assets/css/app.css b/assets/css/app.css
index 673e783..5bb7522 100644
--- a/assets/css/app.css
+++ b/assets/css/app.css
@@ -101,6 +101,7 @@ section {
   width: 375px;
   padding: 20px;
   font-size: 14px;
+  box-sizing: border-box;
   outline: none;
   box-shadow: 0 0 60px rgba(0, 0, 0, 0.1);
 }
@@ -123,11 +124,11 @@ section {
 }
 
 .CodeMirror {
-  height: 100%;
+  height: 100% !important;
   box-shadow: inset 0 0 0 1px rgba(0, 0, 0, 0.1);
   font-size: 14px;
   padding: 20px;
-  width: 100%;
+  width: 100% !important;
   font-family: 'PingFang SC', BlinkMacSystemFont, Roboto, 'Helvetica Neue', sans-serif;
 }
 
diff --git a/assets/css/style-mirror.css b/assets/css/style-mirror.css
new file mode 100644
index 0000000..bf98442
--- /dev/null
+++ b/assets/css/style-mirror.css
@@ -0,0 +1,104 @@
+/*
+
+    Name:       Base16 Default Light
+    Author:     Chris Kempson (http://chriskempson.com)
+
+    CodeMirror template by Jan T. Sott (https://github.com/idleberg/base16-codemirror)
+    Original Base16 color scheme by Chris Kempson (https://github.com/chriskempson/base16)
+
+*/
+
+.cm-s-style-mirror.CodeMirror {
+    background: #f5f5f5;
+    color: #444;
+    font-size: 16px;
+    padding: 20px;
+    line-height: 25px;
+  }
+  .cm-s-style-mirror div.CodeMirror-selected {
+    background: #e0e0e0;
+  }
+  .cm-s-style-mirror .CodeMirror-line::selection,
+  .cm-s-style-mirror .CodeMirror-line > span::selection,
+  .cm-s-style-mirror .CodeMirror-line > span > span::selection {
+    background: #e0e0e0;
+  }
+  .cm-s-style-mirror .CodeMirror-line::-moz-selection,
+  .cm-s-style-mirror .CodeMirror-line > span::-moz-selection,
+  .cm-s-style-mirror .CodeMirror-line > span > span::-moz-selection {
+    background: #e0e0e0;
+  }
+  .cm-s-style-mirror .CodeMirror-gutters {
+    background: #f5f5f5;
+    border-right: 0px;
+  }
+  .cm-s-style-mirror .CodeMirror-guttermarker {
+    color: #ac4142;
+  }
+  .cm-s-style-mirror .CodeMirror-guttermarker-subtle {
+    color: #b0b0b0;
+  }
+  .cm-s-style-mirror .CodeMirror-linenumber {
+    color: #b0b0b0;
+  }
+  .cm-s-style-mirror .CodeMirror-cursor {
+    border-left: 1px solid #505050;
+  }
+  
+  .cm-s-style-mirror span.cm-comment {
+    color:green;
+  }
+  .cm-s-style-mirror span.cm-atom {
+    color: #aa759f;
+  }
+  .cm-s-style-mirror span.cm-number {
+    color: #aa759f;
+  }
+  
+  .cm-s-style-mirror span.cm-property,
+  .cm-s-style-mirror span.cm-attribute {
+    color: #90a959;
+  }
+  .cm-s-style-mirror span.cm-keyword {
+    color: #023a52;
+  }
+  .cm-s-style-mirror span.cm-string {
+    color: #e46918;
+  }
+  
+  .cm-s-style-mirror span.cm-variable {
+    color: #90a959;
+  }
+  .cm-s-style-mirror span.cm-variable-2 {
+    color: #00695f;
+  }
+  .cm-s-style-mirror span.cm-variable-3 {
+    color: #2e6e8a;
+  }
+  .cm-s-style-mirror span.cm-def {
+    color: #d28445;
+  }
+  .cm-s-style-mirror span.cm-bracket {
+    color: #202020;
+  }
+  .cm-s-style-mirror span.cm-tag {
+    color:#000;
+  }
+  .cm-s-style-mirror span.cm-link {
+    color: #b26a00;
+  }
+  .cm-s-style-mirror span.cm-error {
+    /* background: #ac4142;
+    color: #f5f5f5; */
+    text-decoration: underline;
+    text-decoration-style: wavy;
+    text-decoration-color: #df8d8e;
+  }
+  .cm-s-style-mirror .CodeMirror-activeline-background {
+    background: #dddcdc;
+  }
+  .cm-s-style-mirror .CodeMirror-matchingbracket {
+    color: rgb(32,32,32) !important;
+    background-color: rgba(0,0,0,0.1) !important;
+  }
+  
\ No newline at end of file
diff --git a/assets/scripts/editor.js b/assets/scripts/editor.js
index e812c56..c7dc777 100644
--- a/assets/scripts/editor.js
+++ b/assets/scripts/editor.js
@@ -32,6 +32,7 @@ let app = new Vue({
         { label: '翡翠绿', value: 'rgba(0, 152, 116, 0.9)', hex: '清新且优雅' },
         { label: '辣椒红', value: 'rgba(155, 35, 53, 0.9)', hex: '自信且迷人' }
       ],
+      showBox:true,
       aboutDialogVisible: false
     };
     d.currentEditorTheme = d.editorThemes[0].value;
@@ -39,10 +40,11 @@ let app = new Vue({
     d.currentFont = d.builtinFonts[0].value;
     d.currentSize = d.sizeOption[1].value;
     d.currentColor = d.colorOption[1].value;
-    d.showBox = false;
     return d;
   },
   mounted() {
+    this.showBox = false
+    
     this.editor = CodeMirror.fromTextArea(
       document.getElementById('editor'),
       {
@@ -54,23 +56,34 @@ let app = new Vue({
       }
     );
     this.cssEditor = CodeMirror.fromTextArea(
-      document.getElementById('cssEditor'),
-      {
-        lineNumbers: false,
-        lineWrapping: true,
-        styleActiveLine: true,
-        matchBrackets: true,
-        theme: this.currentCssEditorTheme,
-        mode: 'application/json'
-      }
+        document.getElementById('cssEditor'), {
+            mode: 'css',
+            theme: 'style-mirror',
+            lineNumbers:false,
+            lineWrapping: true,
+            matchBrackets: true,
+            autofocus: true,
+            extraKeys: {
+                "Ctrl-F": function autoFormat(editor) {
+                    var totalLines = editor.lineCount();
+                          editor.autoFormatRange({line:0, ch:0}, {line:totalLines});
+                }
+            },
+        }
     );
+    // 自动提示
+    this.cssEditor.on("keyup", (cm, e) => {
+        if ((e.keyCode >= 65 && e.keyCode <= 90) || e.keyCode === 189) {
+          cm.showHint(e);
+        }
+      });
     this.editor.on("change", (cm, change) => {
       this.refresh();
       this.saveEditorContent(this.editor, '__editor_content');
     });
     this.cssEditor.on('update', (instance) => {
-      this.cssChanged();
-      this.saveEditorContent(this.cssEditor, '__css_content');
+        this.cssChanged()
+        this.saveEditorContent(this.cssEditor, '__css_content');
     });
     this.wxRenderer = new WxRenderer({
       theme: setColor(this.currentColor),
@@ -84,20 +97,14 @@ let app = new Vue({
       this.setDefaultContent();
     }
 
-    if (localStorage.getItem('__css_content')) {
-      this.cssEditor.setValue(localStorage.getItem('__css_content'));
-    } else {
-      axios({
-        method: 'get',
-        url: './assets/scripts/themes/default-theme.js'
-      }).then(resp => {
-        this.cssEditor.setValue(resp.data);
-      }).catch(err => {
-        console.log('无法通过网络请求加载default-theme.js文件');
-      })
+    if (localStorage.getItem("__css_content")) {
+        this.cssEditor.setValue(localStorage.getItem("__css_content"));
+      } else {
+        this.cssEditor.setValue(DEFAULT_CSS_CONTENT);
     }
   },
   methods: {
+ 
     renderWeChat(source) {
       let output = marked(source, { renderer: this.wxRenderer.getRenderer() });
       if (this.wxRenderer.hasFootnotes()) {
@@ -133,13 +140,12 @@ let app = new Vue({
       this.refresh();
     },
     cssChanged() {
-      let theme = JSON.parse(this.cssEditor.getValue(0));
-      this.wxRenderer.setOptions({
-        theme: customCss(theme, this.currentColor),
-        font: this.currentFont,
-        size: this.currentSize
-      });
-      this.refresh();
+        let json = css2json(this.cssEditor.getValue(0))
+        let theme = customCssWithTemplate(json,this.currentColor)
+        this.wxRenderer.setOptions({
+            theme
+        });
+        this.refresh();
     },
     // 图片上传结束
     uploaded(response, file, fileList) {
@@ -193,6 +199,7 @@ let app = new Vue({
         localStorage.removeItem('__css_content');
         this.setDefaultContent();
         this.editor.focus();
+        this.cssEditor.setValue(DEFAULT_CSS_CONTENT);
         this.refresh();
       }).catch(() => {
         this.editor.focus();
@@ -208,7 +215,7 @@ let app = new Vue({
       }
     },
     customStyle() {
-      this.saveEditorContent(this.cssEditor, '__css_content');
+        console.log(this.currentColor)
       this.showBox = !this.showBox;
     },
     setDefaultContent() {
diff --git a/assets/scripts/themes/default-theme-css.js b/assets/scripts/themes/default-theme-css.js
new file mode 100644
index 0000000..3efce1e
--- /dev/null
+++ b/assets/scripts/themes/default-theme-css.js
@@ -0,0 +1,55 @@
+const DEFAULT_CSS_CONTENT = 
+`/*
+  按Ctrl+F可格式化
+*/
+/* 一级标题 */
+h1 {
+}
+/* 二级标题 */
+h2 {
+}
+/* 三级标题 */
+h3 {
+}
+h4{
+}
+/* 段落 */
+p {
+}
+blockquote {
+}
+blockquote_p {
+}
+code {
+}
+image {
+}
+image_org{
+}
+/* 无序列表 */
+ol {
+}
+ul {
+}
+/* 引用 */
+blockquote {
+}
+/* 行内样式 */
+table {
+}
+thead {
+}
+strong {
+}
+/* 脚注文字 */
+footnote {
+}
+
+
+
+
+
+`
+
+
+
diff --git a/assets/scripts/themes/default-theme.js b/assets/scripts/themes/default-theme.js
index b75e560..9e39fbd 100644
--- a/assets/scripts/themes/default-theme.js
+++ b/assets/scripts/themes/default-theme.js
@@ -16,7 +16,7 @@ let default_theme = {
             'display': 'table',
             'margin': '2em auto 1em',
             'padding': '0 1em',
-            'border-bottom': '2px solid rgba(15, 76, 129, 0.9)'
+            'border-bottom': '2px solid rgba(0, 152, 116, 0.9)'
         },
 
         // 二级标题样式
@@ -27,7 +27,7 @@ let default_theme = {
             'display': 'table',
             'margin': '4em auto 2em',
             'padding': '0 0.2em',
-            'background': 'rgba(15, 76, 129, 0.9)',
+            'background': 'rgba(0, 152, 116, 0.9)',
             'color': '#fff'
         },
 
@@ -38,7 +38,7 @@ let default_theme = {
             'margin': '2em 8px 0.75em 0',
             'line-height': '1.2',
             'padding-left': '8px',
-            'border-left': '3px solid rgba(15, 76, 129, 0.9)'
+            'border-left': '3px solid rgba(0, 152, 116, 0.9)'
         },
 
         // 四级标题样式
diff --git a/assets/scripts/util.js b/assets/scripts/util.js
index e57f0fe..d962bf4 100644
--- a/assets/scripts/util.js
+++ b/assets/scripts/util.js
@@ -13,25 +13,37 @@ function setColorWithTemplate(template) {
 
 let setColor = setColorWithTemplate(default_theme);
 
-function customCssWithTemplate(template, color) {
-    return function (jsonString) {
-        let custom_theme = JSON.parse(JSON.stringify(template));
-        custom_theme.block.h1 = jsonString.h1;
-        custom_theme.block.h2 = jsonString.h2;
-        custom_theme.block.h3 = jsonString.h3;
-        custom_theme.block.h4 = jsonString.h4;
-        custom_theme.block.p = jsonString.p;
-        // color
-        custom_theme.block.h1['border-bottom'] = `2px solid ${color}`;
+function customCssWithTemplate(jsonString,color) {
+        let custom_theme = JSON.parse(JSON.stringify(default_theme));
+        // block
+        custom_theme.block.h1 = Object.assign(custom_theme.block.h1,jsonString.h1);
+        custom_theme.block.h2 = Object.assign(custom_theme.block.h2,jsonString.h2);
+        custom_theme.block.h3 = Object.assign(custom_theme.block.h3,jsonString.h3);
+        custom_theme.block.h4 = Object.assign(custom_theme.block.h4,jsonString.h4);
+        custom_theme.block.p = Object.assign(custom_theme.block.p,jsonString.p);
+        custom_theme.block.blockquote = Object.assign(custom_theme.block.blockquote,jsonString.blockquote);
+        custom_theme.block.blockquote_p = Object.assign(custom_theme.block.blockquote_p,jsonString.blockquote_p);
+        custom_theme.block.code = Object.assign(custom_theme.block.code,jsonString.code);
+        custom_theme.block.image = Object.assign(custom_theme.block.image,jsonString.image);
+        custom_theme.block.ol = Object.assign(custom_theme.block.ol,jsonString.ol);
+        custom_theme.block.ul = Object.assign(custom_theme.block.ul,jsonString.ul);
+        custom_theme.block.footnotes = Object.assign(custom_theme.block.footnotes,jsonString.footnotes);
+        custom_theme.block.figure = Object.assign(custom_theme.block.figure,jsonString.figure);
+
+        // inline
+        custom_theme.inline.strong = Object.assign(custom_theme.inline.strong,jsonString.strong);
+        custom_theme.inline.table = Object.assign(custom_theme.inline.table,jsonString.table);
+        custom_theme.inline.thead = Object.assign(custom_theme.inline.thead,jsonString.thead);
+        custom_theme.inline.strong = Object.assign(custom_theme.inline.strong,jsonString.strong);
+        custom_theme.inline.link = Object.assign(custom_theme.inline.link,jsonString.link);
+        custom_theme.inline.wx_link = Object.assign(custom_theme.inline.wx_link,jsonString.wx_link);
+
         custom_theme.block.h2['background'] = color;
         custom_theme.block.h3['border-left'] = `3px solid ${color}`;
-        custom_theme.block.h4['color'] = color;
         custom_theme.inline.strong['color'] = color;
         return custom_theme;
-    };
-}
 
-let customCss = customCssWithTemplate(default_theme);
+}
 
 
 /**
@@ -109,4 +121,4 @@ function css2json(css) {
     
     // 返回JSON形式的结果串
     return json;
-}
\ No newline at end of file
+}
diff --git a/index.html b/index.html
index dc44d71..ebe980a 100644
--- a/index.html
+++ b/index.html
@@ -13,12 +13,22 @@
   <link rel="apple-touch-icon-precomposed" href="assets/images/favicon.png">
   <link rel="stylesheet" href="assets/css/loading.css">
   <link rel="stylesheet" href="libs/css/index.css">
-  <link rel="stylesheet" href="libs/css/codemirror.min.css">
+
   <link rel="stylesheet" href="libs/css/xq-light.min.css">
   <link rel="stylesheet" href="libs/css/eclipse.min.css">
   <link rel="stylesheet" href="libs/css/oceanic-next.min.css">
   <link rel="stylesheet" href="libs/css/code-themes/github-v2.min.css">
   <link rel="stylesheet" href="assets/css/app.css">
+ 
+
+    <!-- codemirror -->
+  <link rel="stylesheet" href="libs/css/codemirror.min.css">
+  <link rel="stylesheet" href="libs/css/show-hint.css">
+  <link rel="stylesheet" href="libs/css/style-mirror.css">
+  <link href="https://cdn.jsdelivr.net/npm/animate.css@3.5.1" rel="stylesheet" type="text/css">
+    <!-- 默认CSS -->
+  <script src="assets/scripts/themes/default-theme-css.js"></script>
+
 </head>
 
 <body>
@@ -103,10 +113,16 @@
               </div>
             </section>
           </el-col>
-          <el-col id="cssBox" :span="8" v-show="showBox">
-            <textarea id="cssEditor" type="textarea" @change="cssChanged" placeholder="Custom css here." v-model="source">
-              </textarea>
-          </el-col>
+          <transition
+            name="custom-classes-transition"
+            enter-active-class="animated bounceInRight"
+          >
+            <el-col id="cssBox" :span="12" v-show="showBox">
+                <textarea id="cssEditor" type="textarea" placeholder="Custom css here.">
+                </textarea>
+            </el-col>
+        </transition>
+        
         </el-row>
       </el-main>
     </el-container>
@@ -130,7 +146,16 @@
   <script src="libs/scripts/vue.min.js"></script>
   <script src="libs/scripts/axios.min.js"></script>
   <script src="libs/scripts/marked.min.js"></script>
-  <script src="libs/scripts/codemirror.min.js"></script>
+
+    <!-- codemirror -->
+  <script src="libs/scripts/codemirror/codemirror.min.js"></script>
+  <script src="libs/scripts/codemirror/css.js"></script>
+  <script src="libs/scripts/codemirror/matchbrackets.js"></script>
+  <script src="libs/scripts/codemirror/active-line.js"></script>
+  <script src="libs/scripts/codemirror/show-hint.js"></script>
+  <script src="libs/scripts/codemirror/css-hint.js"></script>
+  <script src="libs/scripts/codemirror/format.js"></script>
+
   <script src="libs/scripts/markdown.min.js"></script>
   <script src="libs/scripts/prettify.min.js"></script>
   <script src="libs/scripts/index.js"></script>
@@ -146,4 +171,6 @@
 
 </body>
 
-</html>
\ No newline at end of file
+</html>
+
+
diff --git a/libs/css/style-mirror.css b/libs/css/style-mirror.css
new file mode 100644
index 0000000..bf98442
--- /dev/null
+++ b/libs/css/style-mirror.css
@@ -0,0 +1,104 @@
+/*
+
+    Name:       Base16 Default Light
+    Author:     Chris Kempson (http://chriskempson.com)
+
+    CodeMirror template by Jan T. Sott (https://github.com/idleberg/base16-codemirror)
+    Original Base16 color scheme by Chris Kempson (https://github.com/chriskempson/base16)
+
+*/
+
+.cm-s-style-mirror.CodeMirror {
+    background: #f5f5f5;
+    color: #444;
+    font-size: 16px;
+    padding: 20px;
+    line-height: 25px;
+  }
+  .cm-s-style-mirror div.CodeMirror-selected {
+    background: #e0e0e0;
+  }
+  .cm-s-style-mirror .CodeMirror-line::selection,
+  .cm-s-style-mirror .CodeMirror-line > span::selection,
+  .cm-s-style-mirror .CodeMirror-line > span > span::selection {
+    background: #e0e0e0;
+  }
+  .cm-s-style-mirror .CodeMirror-line::-moz-selection,
+  .cm-s-style-mirror .CodeMirror-line > span::-moz-selection,
+  .cm-s-style-mirror .CodeMirror-line > span > span::-moz-selection {
+    background: #e0e0e0;
+  }
+  .cm-s-style-mirror .CodeMirror-gutters {
+    background: #f5f5f5;
+    border-right: 0px;
+  }
+  .cm-s-style-mirror .CodeMirror-guttermarker {
+    color: #ac4142;
+  }
+  .cm-s-style-mirror .CodeMirror-guttermarker-subtle {
+    color: #b0b0b0;
+  }
+  .cm-s-style-mirror .CodeMirror-linenumber {
+    color: #b0b0b0;
+  }
+  .cm-s-style-mirror .CodeMirror-cursor {
+    border-left: 1px solid #505050;
+  }
+  
+  .cm-s-style-mirror span.cm-comment {
+    color:green;
+  }
+  .cm-s-style-mirror span.cm-atom {
+    color: #aa759f;
+  }
+  .cm-s-style-mirror span.cm-number {
+    color: #aa759f;
+  }
+  
+  .cm-s-style-mirror span.cm-property,
+  .cm-s-style-mirror span.cm-attribute {
+    color: #90a959;
+  }
+  .cm-s-style-mirror span.cm-keyword {
+    color: #023a52;
+  }
+  .cm-s-style-mirror span.cm-string {
+    color: #e46918;
+  }
+  
+  .cm-s-style-mirror span.cm-variable {
+    color: #90a959;
+  }
+  .cm-s-style-mirror span.cm-variable-2 {
+    color: #00695f;
+  }
+  .cm-s-style-mirror span.cm-variable-3 {
+    color: #2e6e8a;
+  }
+  .cm-s-style-mirror span.cm-def {
+    color: #d28445;
+  }
+  .cm-s-style-mirror span.cm-bracket {
+    color: #202020;
+  }
+  .cm-s-style-mirror span.cm-tag {
+    color:#000;
+  }
+  .cm-s-style-mirror span.cm-link {
+    color: #b26a00;
+  }
+  .cm-s-style-mirror span.cm-error {
+    /* background: #ac4142;
+    color: #f5f5f5; */
+    text-decoration: underline;
+    text-decoration-style: wavy;
+    text-decoration-color: #df8d8e;
+  }
+  .cm-s-style-mirror .CodeMirror-activeline-background {
+    background: #dddcdc;
+  }
+  .cm-s-style-mirror .CodeMirror-matchingbracket {
+    color: rgb(32,32,32) !important;
+    background-color: rgba(0,0,0,0.1) !important;
+  }
+  
\ No newline at end of file
diff --git a/libs/scripts/codemirror/active-line.js b/libs/scripts/codemirror/active-line.js
new file mode 100644
index 0000000..c7b14ce
--- /dev/null
+++ b/libs/scripts/codemirror/active-line.js
@@ -0,0 +1,72 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: https://codemirror.net/LICENSE
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+  "use strict";
+  var WRAP_CLASS = "CodeMirror-activeline";
+  var BACK_CLASS = "CodeMirror-activeline-background";
+  var GUTT_CLASS = "CodeMirror-activeline-gutter";
+
+  CodeMirror.defineOption("styleActiveLine", false, function(cm, val, old) {
+    var prev = old == CodeMirror.Init ? false : old;
+    if (val == prev) return
+    if (prev) {
+      cm.off("beforeSelectionChange", selectionChange);
+      clearActiveLines(cm);
+      delete cm.state.activeLines;
+    }
+    if (val) {
+      cm.state.activeLines = [];
+      updateActiveLines(cm, cm.listSelections());
+      cm.on("beforeSelectionChange", selectionChange);
+    }
+  });
+
+  function clearActiveLines(cm) {
+    for (var i = 0; i < cm.state.activeLines.length; i++) {
+      cm.removeLineClass(cm.state.activeLines[i], "wrap", WRAP_CLASS);
+      cm.removeLineClass(cm.state.activeLines[i], "background", BACK_CLASS);
+      cm.removeLineClass(cm.state.activeLines[i], "gutter", GUTT_CLASS);
+    }
+  }
+
+  function sameArray(a, b) {
+    if (a.length != b.length) return false;
+    for (var i = 0; i < a.length; i++)
+      if (a[i] != b[i]) return false;
+    return true;
+  }
+
+  function updateActiveLines(cm, ranges) {
+    var active = [];
+    for (var i = 0; i < ranges.length; i++) {
+      var range = ranges[i];
+      var option = cm.getOption("styleActiveLine");
+      if (typeof option == "object" && option.nonEmpty ? range.anchor.line != range.head.line : !range.empty())
+        continue
+      var line = cm.getLineHandleVisualStart(range.head.line);
+      if (active[active.length - 1] != line) active.push(line);
+    }
+    if (sameArray(cm.state.activeLines, active)) return;
+    cm.operation(function() {
+      clearActiveLines(cm);
+      for (var i = 0; i < active.length; i++) {
+        cm.addLineClass(active[i], "wrap", WRAP_CLASS);
+        cm.addLineClass(active[i], "background", BACK_CLASS);
+        cm.addLineClass(active[i], "gutter", GUTT_CLASS);
+      }
+      cm.state.activeLines = active;
+    });
+  }
+
+  function selectionChange(cm, sel) {
+    updateActiveLines(cm, sel.ranges);
+  }
+});
diff --git a/libs/scripts/codemirror.min.js b/libs/scripts/codemirror/codemirror.min.js
similarity index 100%
rename from libs/scripts/codemirror.min.js
rename to libs/scripts/codemirror/codemirror.min.js
diff --git a/libs/scripts/css-hint.js b/libs/scripts/codemirror/css-hint.js
similarity index 76%
rename from libs/scripts/css-hint.js
rename to libs/scripts/codemirror/css-hint.js
index 980d119..6cdf728 100644
--- a/libs/scripts/css-hint.js
+++ b/libs/scripts/codemirror/css-hint.js
@@ -11,15 +11,9 @@
 })(function(CodeMirror) {
   "use strict";
 
-  var pseudoClasses = {"active":1, "after":1, "before":1, "checked":1, "default":1,
-    "disabled":1, "empty":1, "enabled":1, "first-child":1, "first-letter":1,
-    "first-line":1, "first-of-type":1, "focus":1, "hover":1, "in-range":1,
-    "indeterminate":1, "invalid":1, "lang":1, "last-child":1, "last-of-type":1,
-    "link":1, "not":1, "nth-child":1, "nth-last-child":1, "nth-last-of-type":1,
-    "nth-of-type":1, "only-of-type":1, "only-child":1, "optional":1, "out-of-range":1,
-    "placeholder":1, "read-only":1, "read-write":1, "required":1, "root":1,
-    "selection":1, "target":1, "valid":1, "visited":1
-  };
+  var pseudoClasses = {link: 1, visited: 1, active: 1, hover: 1, focus: 1,
+                       "first-letter": 1, "first-line": 1, "first-child": 1,
+                       before: 1, after: 1, lang: 1};
 
   CodeMirror.registerHelper("hint", "css", function(cm) {
     var cur = cm.getCursor(), token = cm.getTokenAt(cur);
diff --git a/libs/scripts/codemirror/css.js b/libs/scripts/codemirror/css.js
new file mode 100644
index 0000000..05742c5
--- /dev/null
+++ b/libs/scripts/codemirror/css.js
@@ -0,0 +1,831 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: https://codemirror.net/LICENSE
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+"use strict";
+
+CodeMirror.defineMode("css", function(config, parserConfig) {
+  var inline = parserConfig.inline
+  if (!parserConfig.propertyKeywords) parserConfig = CodeMirror.resolveMode("text/css");
+
+  var indentUnit = config.indentUnit,
+      tokenHooks = parserConfig.tokenHooks,
+      documentTypes = parserConfig.documentTypes || {},
+      mediaTypes = parserConfig.mediaTypes || {},
+      mediaFeatures = parserConfig.mediaFeatures || {},
+      mediaValueKeywords = parserConfig.mediaValueKeywords || {},
+      propertyKeywords = parserConfig.propertyKeywords || {},
+      nonStandardPropertyKeywords = parserConfig.nonStandardPropertyKeywords || {},
+      fontProperties = parserConfig.fontProperties || {},
+      counterDescriptors = parserConfig.counterDescriptors || {},
+      colorKeywords = parserConfig.colorKeywords || {},
+      valueKeywords = parserConfig.valueKeywords || {},
+      allowNested = parserConfig.allowNested,
+      lineComment = parserConfig.lineComment,
+      supportsAtComponent = parserConfig.supportsAtComponent === true;
+
+  var type, override;
+  function ret(style, tp) { type = tp; return style; }
+
+  // Tokenizers
+
+  function tokenBase(stream, state) {
+    var ch = stream.next();
+    if (tokenHooks[ch]) {
+      var result = tokenHooks[ch](stream, state);
+      if (result !== false) return result;
+    }
+    if (ch == "@") {
+      stream.eatWhile(/[\w\\\-]/);
+      return ret("def", stream.current());
+    } else if (ch == "=" || (ch == "~" || ch == "|") && stream.eat("=")) {
+      return ret(null, "compare");
+    } else if (ch == "\"" || ch == "'") {
+      state.tokenize = tokenString(ch);
+      return state.tokenize(stream, state);
+    } else if (ch == "#") {
+      stream.eatWhile(/[\w\\\-]/);
+      return ret("atom", "hash");
+    } else if (ch == "!") {
+      stream.match(/^\s*\w*/);
+      return ret("keyword", "important");
+    } else if (/\d/.test(ch) || ch == "." && stream.eat(/\d/)) {
+      stream.eatWhile(/[\w.%]/);
+      return ret("number", "unit");
+    } else if (ch === "-") {
+      if (/[\d.]/.test(stream.peek())) {
+        stream.eatWhile(/[\w.%]/);
+        return ret("number", "unit");
+      } else if (stream.match(/^-[\w\\\-]*/)) {
+        stream.eatWhile(/[\w\\\-]/);
+        if (stream.match(/^\s*:/, false))
+          return ret("variable-2", "variable-definition");
+        return ret("variable-2", "variable");
+      } else if (stream.match(/^\w+-/)) {
+        return ret("meta", "meta");
+      }
+    } else if (/[,+>*\/]/.test(ch)) {
+      return ret(null, "select-op");
+    } else if (ch == "." && stream.match(/^-?[_a-z][_a-z0-9-]*/i)) {
+      return ret("qualifier", "qualifier");
+    } else if (/[:;{}\[\]\(\)]/.test(ch)) {
+      return ret(null, ch);
+    } else if (stream.match(/[\w-.]+(?=\()/)) {
+      if (/^(url(-prefix)?|domain|regexp)$/.test(stream.current().toLowerCase())) {
+        state.tokenize = tokenParenthesized;
+      }
+      return ret("variable callee", "variable");
+    } else if (/[\w\\\-]/.test(ch)) {
+      stream.eatWhile(/[\w\\\-]/);
+      return ret("property", "word");
+    } else {
+      return ret(null, null);
+    }
+  }
+
+  function tokenString(quote) {
+    return function(stream, state) {
+      var escaped = false, ch;
+      while ((ch = stream.next()) != null) {
+        if (ch == quote && !escaped) {
+          if (quote == ")") stream.backUp(1);
+          break;
+        }
+        escaped = !escaped && ch == "\\";
+      }
+      if (ch == quote || !escaped && quote != ")") state.tokenize = null;
+      return ret("string", "string");
+    };
+  }
+
+  function tokenParenthesized(stream, state) {
+    stream.next(); // Must be '('
+    if (!stream.match(/\s*[\"\')]/, false))
+      state.tokenize = tokenString(")");
+    else
+      state.tokenize = null;
+    return ret(null, "(");
+  }
+
+  // Context management
+
+  function Context(type, indent, prev) {
+    this.type = type;
+    this.indent = indent;
+    this.prev = prev;
+  }
+
+  function pushContext(state, stream, type, indent) {
+    state.context = new Context(type, stream.indentation() + (indent === false ? 0 : indentUnit), state.context);
+    return type;
+  }
+
+  function popContext(state) {
+    if (state.context.prev)
+      state.context = state.context.prev;
+    return state.context.type;
+  }
+
+  function pass(type, stream, state) {
+    return states[state.context.type](type, stream, state);
+  }
+  function popAndPass(type, stream, state, n) {
+    for (var i = n || 1; i > 0; i--)
+      state.context = state.context.prev;
+    return pass(type, stream, state);
+  }
+
+  // Parser
+
+  function wordAsValue(stream) {
+    var word = stream.current().toLowerCase();
+    if (valueKeywords.hasOwnProperty(word))
+      override = "atom";
+    else if (colorKeywords.hasOwnProperty(word))
+      override = "keyword";
+    else
+      override = "variable";
+  }
+
+  var states = {};
+
+  states.top = function(type, stream, state) {
+    if (type == "{") {
+      return pushContext(state, stream, "block");
+    } else if (type == "}" && state.context.prev) {
+      return popContext(state);
+    } else if (supportsAtComponent && /@component/i.test(type)) {
+      return pushContext(state, stream, "atComponentBlock");
+    } else if (/^@(-moz-)?document$/i.test(type)) {
+      return pushContext(state, stream, "documentTypes");
+    } else if (/^@(media|supports|(-moz-)?document|import)$/i.test(type)) {
+      return pushContext(state, stream, "atBlock");
+    } else if (/^@(font-face|counter-style)/i.test(type)) {
+      state.stateArg = type;
+      return "restricted_atBlock_before";
+    } else if (/^@(-(moz|ms|o|webkit)-)?keyframes$/i.test(type)) {
+      return "keyframes";
+    } else if (type && type.charAt(0) == "@") {
+      return pushContext(state, stream, "at");
+    } else if (type == "hash") {
+      override = "builtin";
+    } else if (type == "word") {
+      override = "tag";
+    } else if (type == "variable-definition") {
+      return "maybeprop";
+    } else if (type == "interpolation") {
+      return pushContext(state, stream, "interpolation");
+    } else if (type == ":") {
+      return "pseudo";
+    } else if (allowNested && type == "(") {
+      return pushContext(state, stream, "parens");
+    }
+    return state.context.type;
+  };
+
+  states.block = function(type, stream, state) {
+    if (type == "word") {
+      var word = stream.current().toLowerCase();
+      if (propertyKeywords.hasOwnProperty(word)) {
+        override = "property";
+        return "maybeprop";
+      } else if (nonStandardPropertyKeywords.hasOwnProperty(word)) {
+        override = "string-2";
+        return "maybeprop";
+      } else if (allowNested) {
+        override = stream.match(/^\s*:(?:\s|$)/, false) ? "property" : "tag";
+        return "block";
+      } else {
+        override += " error";
+        return "maybeprop";
+      }
+    } else if (type == "meta") {
+      return "block";
+    } else if (!allowNested && (type == "hash" || type == "qualifier")) {
+      override = "error";
+      return "block";
+    } else {
+      return states.top(type, stream, state);
+    }
+  };
+
+  states.maybeprop = function(type, stream, state) {
+    if (type == ":") return pushContext(state, stream, "prop");
+    return pass(type, stream, state);
+  };
+
+  states.prop = function(type, stream, state) {
+    if (type == ";") return popContext(state);
+    if (type == "{" && allowNested) return pushContext(state, stream, "propBlock");
+    if (type == "}" || type == "{") return popAndPass(type, stream, state);
+    if (type == "(") return pushContext(state, stream, "parens");
+
+    if (type == "hash" && !/^#([0-9a-fA-f]{3,4}|[0-9a-fA-f]{6}|[0-9a-fA-f]{8})$/.test(stream.current())) {
+      override += " error";
+    } else if (type == "word") {
+      wordAsValue(stream);
+    } else if (type == "interpolation") {
+      return pushContext(state, stream, "interpolation");
+    }
+    return "prop";
+  };
+
+  states.propBlock = function(type, _stream, state) {
+    if (type == "}") return popContext(state);
+    if (type == "word") { override = "property"; return "maybeprop"; }
+    return state.context.type;
+  };
+
+  states.parens = function(type, stream, state) {
+    if (type == "{" || type == "}") return popAndPass(type, stream, state);
+    if (type == ")") return popContext(state);
+    if (type == "(") return pushContext(state, stream, "parens");
+    if (type == "interpolation") return pushContext(state, stream, "interpolation");
+    if (type == "word") wordAsValue(stream);
+    return "parens";
+  };
+
+  states.pseudo = function(type, stream, state) {
+    if (type == "meta") return "pseudo";
+
+    if (type == "word") {
+      override = "variable-3";
+      return state.context.type;
+    }
+    return pass(type, stream, state);
+  };
+
+  states.documentTypes = function(type, stream, state) {
+    if (type == "word" && documentTypes.hasOwnProperty(stream.current())) {
+      override = "tag";
+      return state.context.type;
+    } else {
+      return states.atBlock(type, stream, state);
+    }
+  };
+
+  states.atBlock = function(type, stream, state) {
+    if (type == "(") return pushContext(state, stream, "atBlock_parens");
+    if (type == "}" || type == ";") return popAndPass(type, stream, state);
+    if (type == "{") return popContext(state) && pushContext(state, stream, allowNested ? "block" : "top");
+
+    if (type == "interpolation") return pushContext(state, stream, "interpolation");
+
+    if (type == "word") {
+      var word = stream.current().toLowerCase();
+      if (word == "only" || word == "not" || word == "and" || word == "or")
+        override = "keyword";
+      else if (mediaTypes.hasOwnProperty(word))
+        override = "attribute";
+      else if (mediaFeatures.hasOwnProperty(word))
+        override = "property";
+      else if (mediaValueKeywords.hasOwnProperty(word))
+        override = "keyword";
+      else if (propertyKeywords.hasOwnProperty(word))
+        override = "property";
+      else if (nonStandardPropertyKeywords.hasOwnProperty(word))
+        override = "string-2";
+      else if (valueKeywords.hasOwnProperty(word))
+        override = "atom";
+      else if (colorKeywords.hasOwnProperty(word))
+        override = "keyword";
+      else
+        override = "error";
+    }
+    return state.context.type;
+  };
+
+  states.atComponentBlock = function(type, stream, state) {
+    if (type == "}")
+      return popAndPass(type, stream, state);
+    if (type == "{")
+      return popContext(state) && pushContext(state, stream, allowNested ? "block" : "top", false);
+    if (type == "word")
+      override = "error";
+    return state.context.type;
+  };
+
+  states.atBlock_parens = function(type, stream, state) {
+    if (type == ")") return popContext(state);
+    if (type == "{" || type == "}") return popAndPass(type, stream, state, 2);
+    return states.atBlock(type, stream, state);
+  };
+
+  states.restricted_atBlock_before = function(type, stream, state) {
+    if (type == "{")
+      return pushContext(state, stream, "restricted_atBlock");
+    if (type == "word" && state.stateArg == "@counter-style") {
+      override = "variable";
+      return "restricted_atBlock_before";
+    }
+    return pass(type, stream, state);
+  };
+
+  states.restricted_atBlock = function(type, stream, state) {
+    if (type == "}") {
+      state.stateArg = null;
+      return popContext(state);
+    }
+    if (type == "word") {
+      if ((state.stateArg == "@font-face" && !fontProperties.hasOwnProperty(stream.current().toLowerCase())) ||
+          (state.stateArg == "@counter-style" && !counterDescriptors.hasOwnProperty(stream.current().toLowerCase())))
+        override = "error";
+      else
+        override = "property";
+      return "maybeprop";
+    }
+    return "restricted_atBlock";
+  };
+
+  states.keyframes = function(type, stream, state) {
+    if (type == "word") { override = "variable"; return "keyframes"; }
+    if (type == "{") return pushContext(state, stream, "top");
+    return pass(type, stream, state);
+  };
+
+  states.at = function(type, stream, state) {
+    if (type == ";") return popContext(state);
+    if (type == "{" || type == "}") return popAndPass(type, stream, state);
+    if (type == "word") override = "tag";
+    else if (type == "hash") override = "builtin";
+    return "at";
+  };
+
+  states.interpolation = function(type, stream, state) {
+    if (type == "}") return popContext(state);
+    if (type == "{" || type == ";") return popAndPass(type, stream, state);
+    if (type == "word") override = "variable";
+    else if (type != "variable" && type != "(" && type != ")") override = "error";
+    return "interpolation";
+  };
+
+  return {
+    startState: function(base) {
+      return {tokenize: null,
+              state: inline ? "block" : "top",
+              stateArg: null,
+              context: new Context(inline ? "block" : "top", base || 0, null)};
+    },
+
+    token: function(stream, state) {
+      if (!state.tokenize && stream.eatSpace()) return null;
+      var style = (state.tokenize || tokenBase)(stream, state);
+      if (style && typeof style == "object") {
+        type = style[1];
+        style = style[0];
+      }
+      override = style;
+      if (type != "comment")
+        state.state = states[state.state](type, stream, state);
+      return override;
+    },
+
+    indent: function(state, textAfter) {
+      var cx = state.context, ch = textAfter && textAfter.charAt(0);
+      var indent = cx.indent;
+      if (cx.type == "prop" && (ch == "}" || ch == ")")) cx = cx.prev;
+      if (cx.prev) {
+        if (ch == "}" && (cx.type == "block" || cx.type == "top" ||
+                          cx.type == "interpolation" || cx.type == "restricted_atBlock")) {
+          // Resume indentation from parent context.
+          cx = cx.prev;
+          indent = cx.indent;
+        } else if (ch == ")" && (cx.type == "parens" || cx.type == "atBlock_parens") ||
+            ch == "{" && (cx.type == "at" || cx.type == "atBlock")) {
+          // Dedent relative to current context.
+          indent = Math.max(0, cx.indent - indentUnit);
+        }
+      }
+      return indent;
+    },
+
+    electricChars: "}",
+    blockCommentStart: "/*",
+    blockCommentEnd: "*/",
+    blockCommentContinue: " * ",
+    lineComment: lineComment,
+    fold: "brace"
+  };
+});
+
+  function keySet(array) {
+    var keys = {};
+    for (var i = 0; i < array.length; ++i) {
+      keys[array[i].toLowerCase()] = true;
+    }
+    return keys;
+  }
+
+  var documentTypes_ = [
+    "domain", "regexp", "url", "url-prefix"
+  ], documentTypes = keySet(documentTypes_);
+
+  var mediaTypes_ = [
+    "all", "aural", "braille", "handheld", "print", "projection", "screen",
+    "tty", "tv", "embossed"
+  ], mediaTypes = keySet(mediaTypes_);
+
+  var mediaFeatures_ = [
+    "width", "min-width", "max-width", "height", "min-height", "max-height",
+    "device-width", "min-device-width", "max-device-width", "device-height",
+    "min-device-height", "max-device-height", "aspect-ratio",
+    "min-aspect-ratio", "max-aspect-ratio", "device-aspect-ratio",
+    "min-device-aspect-ratio", "max-device-aspect-ratio", "color", "min-color",
+    "max-color", "color-index", "min-color-index", "max-color-index",
+    "monochrome", "min-monochrome", "max-monochrome", "resolution",
+    "min-resolution", "max-resolution", "scan", "grid", "orientation",
+    "device-pixel-ratio", "min-device-pixel-ratio", "max-device-pixel-ratio",
+    "pointer", "any-pointer", "hover", "any-hover"
+  ], mediaFeatures = keySet(mediaFeatures_);
+
+  var mediaValueKeywords_ = [
+    "landscape", "portrait", "none", "coarse", "fine", "on-demand", "hover",
+    "interlace", "progressive"
+  ], mediaValueKeywords = keySet(mediaValueKeywords_);
+
+  var propertyKeywords_ = [
+    "align-content", "align-items", "align-self", "alignment-adjust",
+    "alignment-baseline", "anchor-point", "animation", "animation-delay",
+    "animation-direction", "animation-duration", "animation-fill-mode",
+    "animation-iteration-count", "animation-name", "animation-play-state",
+    "animation-timing-function", "appearance", "azimuth", "backface-visibility",
+    "background", "background-attachment", "background-blend-mode", "background-clip",
+    "background-color", "background-image", "background-origin", "background-position",
+    "background-repeat", "background-size", "baseline-shift", "binding",
+    "bleed", "bookmark-label", "bookmark-level", "bookmark-state",
+    "bookmark-target", "border", "border-bottom", "border-bottom-color",
+    "border-bottom-left-radius", "border-bottom-right-radius",
+    "border-bottom-style", "border-bottom-width", "border-collapse",
+    "border-color", "border-image", "border-image-outset",
+    "border-image-repeat", "border-image-slice", "border-image-source",
+    "border-image-width", "border-left", "border-left-color",
+    "border-left-style", "border-left-width", "border-radius", "border-right",
+    "border-right-color", "border-right-style", "border-right-width",
+    "border-spacing", "border-style", "border-top", "border-top-color",
+    "border-top-left-radius", "border-top-right-radius", "border-top-style",
+    "border-top-width", "border-width", "bottom", "box-decoration-break",
+    "box-shadow", "box-sizing", "break-after", "break-before", "break-inside",
+    "caption-side", "caret-color", "clear", "clip", "color", "color-profile", "column-count",
+    "column-fill", "column-gap", "column-rule", "column-rule-color",
+    "column-rule-style", "column-rule-width", "column-span", "column-width",
+    "columns", "content", "counter-increment", "counter-reset", "crop", "cue",
+    "cue-after", "cue-before", "cursor", "direction", "display",
+    "dominant-baseline", "drop-initial-after-adjust",
+    "drop-initial-after-align", "drop-initial-before-adjust",
+    "drop-initial-before-align", "drop-initial-size", "drop-initial-value",
+    "elevation", "empty-cells", "fit", "fit-position", "flex", "flex-basis",
+    "flex-direction", "flex-flow", "flex-grow", "flex-shrink", "flex-wrap",
+    "float", "float-offset", "flow-from", "flow-into", "font", "font-feature-settings",
+    "font-family", "font-kerning", "font-language-override", "font-size", "font-size-adjust",
+    "font-stretch", "font-style", "font-synthesis", "font-variant",
+    "font-variant-alternates", "font-variant-caps", "font-variant-east-asian",
+    "font-variant-ligatures", "font-variant-numeric", "font-variant-position",
+    "font-weight", "grid", "grid-area", "grid-auto-columns", "grid-auto-flow",
+    "grid-auto-rows", "grid-column", "grid-column-end", "grid-column-gap",
+    "grid-column-start", "grid-gap", "grid-row", "grid-row-end", "grid-row-gap",
+    "grid-row-start", "grid-template", "grid-template-areas", "grid-template-columns",
+    "grid-template-rows", "hanging-punctuation", "height", "hyphens",
+    "icon", "image-orientation", "image-rendering", "image-resolution",
+    "inline-box-align", "justify-content", "justify-items", "justify-self", "left", "letter-spacing",
+    "line-break", "line-height", "line-stacking", "line-stacking-ruby",
+    "line-stacking-shift", "line-stacking-strategy", "list-style",
+    "list-style-image", "list-style-position", "list-style-type", "margin",
+    "margin-bottom", "margin-left", "margin-right", "margin-top",
+    "marks", "marquee-direction", "marquee-loop",
+    "marquee-play-count", "marquee-speed", "marquee-style", "max-height",
+    "max-width", "min-height", "min-width", "mix-blend-mode", "move-to", "nav-down", "nav-index",
+    "nav-left", "nav-right", "nav-up", "object-fit", "object-position",
+    "opacity", "order", "orphans", "outline",
+    "outline-color", "outline-offset", "outline-style", "outline-width",
+    "overflow", "overflow-style", "overflow-wrap", "overflow-x", "overflow-y",
+    "padding", "padding-bottom", "padding-left", "padding-right", "padding-top",
+    "page", "page-break-after", "page-break-before", "page-break-inside",
+    "page-policy", "pause", "pause-after", "pause-before", "perspective",
+    "perspective-origin", "pitch", "pitch-range", "place-content", "place-items", "place-self", "play-during", "position",
+    "presentation-level", "punctuation-trim", "quotes", "region-break-after",
+    "region-break-before", "region-break-inside", "region-fragment",
+    "rendering-intent", "resize", "rest", "rest-after", "rest-before", "richness",
+    "right", "rotation", "rotation-point", "ruby-align", "ruby-overhang",
+    "ruby-position", "ruby-span", "shape-image-threshold", "shape-inside", "shape-margin",
+    "shape-outside", "size", "speak", "speak-as", "speak-header",
+    "speak-numeral", "speak-punctuation", "speech-rate", "stress", "string-set",
+    "tab-size", "table-layout", "target", "target-name", "target-new",
+    "target-position", "text-align", "text-align-last", "text-decoration",
+    "text-decoration-color", "text-decoration-line", "text-decoration-skip",
+    "text-decoration-style", "text-emphasis", "text-emphasis-color",
+    "text-emphasis-position", "text-emphasis-style", "text-height",
+    "text-indent", "text-justify", "text-outline", "text-overflow", "text-shadow",
+    "text-size-adjust", "text-space-collapse", "text-transform", "text-underline-position",
+    "text-wrap", "top", "transform", "transform-origin", "transform-style",
+    "transition", "transition-delay", "transition-duration",
+    "transition-property", "transition-timing-function", "unicode-bidi",
+    "user-select", "vertical-align", "visibility", "voice-balance", "voice-duration",
+    "voice-family", "voice-pitch", "voice-range", "voice-rate", "voice-stress",
+    "voice-volume", "volume", "white-space", "widows", "width", "will-change", "word-break",
+    "word-spacing", "word-wrap", "z-index",
+    // SVG-specific
+    "clip-path", "clip-rule", "mask", "enable-background", "filter", "flood-color",
+    "flood-opacity", "lighting-color", "stop-color", "stop-opacity", "pointer-events",
+    "color-interpolation", "color-interpolation-filters",
+    "color-rendering", "fill", "fill-opacity", "fill-rule", "image-rendering",
+    "marker", "marker-end", "marker-mid", "marker-start", "shape-rendering", "stroke",
+    "stroke-dasharray", "stroke-dashoffset", "stroke-linecap", "stroke-linejoin",
+    "stroke-miterlimit", "stroke-opacity", "stroke-width", "text-rendering",
+    "baseline-shift", "dominant-baseline", "glyph-orientation-horizontal",
+    "glyph-orientation-vertical", "text-anchor", "writing-mode"
+  ], propertyKeywords = keySet(propertyKeywords_);
+
+  var nonStandardPropertyKeywords_ = [
+    "scrollbar-arrow-color", "scrollbar-base-color", "scrollbar-dark-shadow-color",
+    "scrollbar-face-color", "scrollbar-highlight-color", "scrollbar-shadow-color",
+    "scrollbar-3d-light-color", "scrollbar-track-color", "shape-inside",
+    "searchfield-cancel-button", "searchfield-decoration", "searchfield-results-button",
+    "searchfield-results-decoration", "zoom"
+  ], nonStandardPropertyKeywords = keySet(nonStandardPropertyKeywords_);
+
+  var fontProperties_ = [
+    "font-family", "src", "unicode-range", "font-variant", "font-feature-settings",
+    "font-stretch", "font-weight", "font-style"
+  ], fontProperties = keySet(fontProperties_);
+
+  var counterDescriptors_ = [
+    "additive-symbols", "fallback", "negative", "pad", "prefix", "range",
+    "speak-as", "suffix", "symbols", "system"
+  ], counterDescriptors = keySet(counterDescriptors_);
+
+  var colorKeywords_ = [
+    "aliceblue", "antiquewhite", "aqua", "aquamarine", "azure", "beige",
+    "bisque", "black", "blanchedalmond", "blue", "blueviolet", "brown",
+    "burlywood", "cadetblue", "chartreuse", "chocolate", "coral", "cornflowerblue",
+    "cornsilk", "crimson", "cyan", "darkblue", "darkcyan", "darkgoldenrod",
+    "darkgray", "darkgreen", "darkkhaki", "darkmagenta", "darkolivegreen",
+    "darkorange", "darkorchid", "darkred", "darksalmon", "darkseagreen",
+    "darkslateblue", "darkslategray", "darkturquoise", "darkviolet",
+    "deeppink", "deepskyblue", "dimgray", "dodgerblue", "firebrick",
+    "floralwhite", "forestgreen", "fuchsia", "gainsboro", "ghostwhite",
+    "gold", "goldenrod", "gray", "grey", "green", "greenyellow", "honeydew",
+    "hotpink", "indianred", "indigo", "ivory", "khaki", "lavender",
+    "lavenderblush", "lawngreen", "lemonchiffon", "lightblue", "lightcoral",
+    "lightcyan", "lightgoldenrodyellow", "lightgray", "lightgreen", "lightpink",
+    "lightsalmon", "lightseagreen", "lightskyblue", "lightslategray",
+    "lightsteelblue", "lightyellow", "lime", "limegreen", "linen", "magenta",
+    "maroon", "mediumaquamarine", "mediumblue", "mediumorchid", "mediumpurple",
+    "mediumseagreen", "mediumslateblue", "mediumspringgreen", "mediumturquoise",
+    "mediumvioletred", "midnightblue", "mintcream", "mistyrose", "moccasin",
+    "navajowhite", "navy", "oldlace", "olive", "olivedrab", "orange", "orangered",
+    "orchid", "palegoldenrod", "palegreen", "paleturquoise", "palevioletred",
+    "papayawhip", "peachpuff", "peru", "pink", "plum", "powderblue",
+    "purple", "rebeccapurple", "red", "rosybrown", "royalblue", "saddlebrown",
+    "salmon", "sandybrown", "seagreen", "seashell", "sienna", "silver", "skyblue",
+    "slateblue", "slategray", "snow", "springgreen", "steelblue", "tan",
+    "teal", "thistle", "tomato", "turquoise", "violet", "wheat", "white",
+    "whitesmoke", "yellow", "yellowgreen"
+  ], colorKeywords = keySet(colorKeywords_);
+
+  var valueKeywords_ = [
+    "above", "absolute", "activeborder", "additive", "activecaption", "afar",
+    "after-white-space", "ahead", "alias", "all", "all-scroll", "alphabetic", "alternate",
+    "always", "amharic", "amharic-abegede", "antialiased", "appworkspace",
+    "arabic-indic", "armenian", "asterisks", "attr", "auto", "auto-flow", "avoid", "avoid-column", "avoid-page",
+    "avoid-region", "background", "backwards", "baseline", "below", "bidi-override", "binary",
+    "bengali", "blink", "block", "block-axis", "bold", "bolder", "border", "border-box",
+    "both", "bottom", "break", "break-all", "break-word", "bullets", "button", "button-bevel",
+    "buttonface", "buttonhighlight", "buttonshadow", "buttontext", "calc", "cambodian",
+    "capitalize", "caps-lock-indicator", "caption", "captiontext", "caret",
+    "cell", "center", "checkbox", "circle", "cjk-decimal", "cjk-earthly-branch",
+    "cjk-heavenly-stem", "cjk-ideographic", "clear", "clip", "close-quote",
+    "col-resize", "collapse", "color", "color-burn", "color-dodge", "column", "column-reverse",
+    "compact", "condensed", "contain", "content", "contents",
+    "content-box", "context-menu", "continuous", "copy", "counter", "counters", "cover", "crop",
+    "cross", "crosshair", "currentcolor", "cursive", "cyclic", "darken", "dashed", "decimal",
+    "decimal-leading-zero", "default", "default-button", "dense", "destination-atop",
+    "destination-in", "destination-out", "destination-over", "devanagari", "difference",
+    "disc", "discard", "disclosure-closed", "disclosure-open", "document",
+    "dot-dash", "dot-dot-dash",
+    "dotted", "double", "down", "e-resize", "ease", "ease-in", "ease-in-out", "ease-out",
+    "element", "ellipse", "ellipsis", "embed", "end", "ethiopic", "ethiopic-abegede",
+    "ethiopic-abegede-am-et", "ethiopic-abegede-gez", "ethiopic-abegede-ti-er",
+    "ethiopic-abegede-ti-et", "ethiopic-halehame-aa-er",
+    "ethiopic-halehame-aa-et", "ethiopic-halehame-am-et",
+    "ethiopic-halehame-gez", "ethiopic-halehame-om-et",
+    "ethiopic-halehame-sid-et", "ethiopic-halehame-so-et",
+    "ethiopic-halehame-ti-er", "ethiopic-halehame-ti-et", "ethiopic-halehame-tig",
+    "ethiopic-numeric", "ew-resize", "exclusion", "expanded", "extends", "extra-condensed",
+    "extra-expanded", "fantasy", "fast", "fill", "fixed", "flat", "flex", "flex-end", "flex-start", "footnotes",
+    "forwards", "from", "geometricPrecision", "georgian", "graytext", "grid", "groove",
+    "gujarati", "gurmukhi", "hand", "hangul", "hangul-consonant", "hard-light", "hebrew",
+    "help", "hidden", "hide", "higher", "highlight", "highlighttext",
+    "hiragana", "hiragana-iroha", "horizontal", "hsl", "hsla", "hue", "icon", "ignore",
+    "inactiveborder", "inactivecaption", "inactivecaptiontext", "infinite",
+    "infobackground", "infotext", "inherit", "initial", "inline", "inline-axis",
+    "inline-block", "inline-flex", "inline-grid", "inline-table", "inset", "inside", "intrinsic", "invert",
+    "italic", "japanese-formal", "japanese-informal", "justify", "kannada",
+    "katakana", "katakana-iroha", "keep-all", "khmer",
+    "korean-hangul-formal", "korean-hanja-formal", "korean-hanja-informal",
+    "landscape", "lao", "large", "larger", "left", "level", "lighter", "lighten",
+    "line-through", "linear", "linear-gradient", "lines", "list-item", "listbox", "listitem",
+    "local", "logical", "loud", "lower", "lower-alpha", "lower-armenian",
+    "lower-greek", "lower-hexadecimal", "lower-latin", "lower-norwegian",
+    "lower-roman", "lowercase", "ltr", "luminosity", "malayalam", "match", "matrix", "matrix3d",
+    "media-controls-background", "media-current-time-display",
+    "media-fullscreen-button", "media-mute-button", "media-play-button",
+    "media-return-to-realtime-button", "media-rewind-button",
+    "media-seek-back-button", "media-seek-forward-button", "media-slider",
+    "media-sliderthumb", "media-time-remaining-display", "media-volume-slider",
+    "media-volume-slider-container", "media-volume-sliderthumb", "medium",
+    "menu", "menulist", "menulist-button", "menulist-text",
+    "menulist-textfield", "menutext", "message-box", "middle", "min-intrinsic",
+    "mix", "mongolian", "monospace", "move", "multiple", "multiply", "myanmar", "n-resize",
+    "narrower", "ne-resize", "nesw-resize", "no-close-quote", "no-drop",
+    "no-open-quote", "no-repeat", "none", "normal", "not-allowed", "nowrap",
+    "ns-resize", "numbers", "numeric", "nw-resize", "nwse-resize", "oblique", "octal", "opacity", "open-quote",
+    "optimizeLegibility", "optimizeSpeed", "oriya", "oromo", "outset",
+    "outside", "outside-shape", "overlay", "overline", "padding", "padding-box",
+    "painted", "page", "paused", "persian", "perspective", "plus-darker", "plus-lighter",
+    "pointer", "polygon", "portrait", "pre", "pre-line", "pre-wrap", "preserve-3d",
+    "progress", "push-button", "radial-gradient", "radio", "read-only",
+    "read-write", "read-write-plaintext-only", "rectangle", "region",
+    "relative", "repeat", "repeating-linear-gradient",
+    "repeating-radial-gradient", "repeat-x", "repeat-y", "reset", "reverse",
+    "rgb", "rgba", "ridge", "right", "rotate", "rotate3d", "rotateX", "rotateY",
+    "rotateZ", "round", "row", "row-resize", "row-reverse", "rtl", "run-in", "running",
+    "s-resize", "sans-serif", "saturation", "scale", "scale3d", "scaleX", "scaleY", "scaleZ", "screen",
+    "scroll", "scrollbar", "scroll-position", "se-resize", "searchfield",
+    "searchfield-cancel-button", "searchfield-decoration",
+    "searchfield-results-button", "searchfield-results-decoration", "self-start", "self-end",
+    "semi-condensed", "semi-expanded", "separate", "serif", "show", "sidama",
+    "simp-chinese-formal", "simp-chinese-informal", "single",
+    "skew", "skewX", "skewY", "skip-white-space", "slide", "slider-horizontal",
+    "slider-vertical", "sliderthumb-horizontal", "sliderthumb-vertical", "slow",
+    "small", "small-caps", "small-caption", "smaller", "soft-light", "solid", "somali",
+    "source-atop", "source-in", "source-out", "source-over", "space", "space-around", "space-between", "space-evenly", "spell-out", "square",
+    "square-button", "start", "static", "status-bar", "stretch", "stroke", "sub",
+    "subpixel-antialiased", "super", "sw-resize", "symbolic", "symbols", "system-ui", "table",
+    "table-caption", "table-cell", "table-column", "table-column-group",
+    "table-footer-group", "table-header-group", "table-row", "table-row-group",
+    "tamil",
+    "telugu", "text", "text-bottom", "text-top", "textarea", "textfield", "thai",
+    "thick", "thin", "threeddarkshadow", "threedface", "threedhighlight",
+    "threedlightshadow", "threedshadow", "tibetan", "tigre", "tigrinya-er",
+    "tigrinya-er-abegede", "tigrinya-et", "tigrinya-et-abegede", "to", "top",
+    "trad-chinese-formal", "trad-chinese-informal", "transform",
+    "translate", "translate3d", "translateX", "translateY", "translateZ",
+    "transparent", "ultra-condensed", "ultra-expanded", "underline", "unset", "up",
+    "upper-alpha", "upper-armenian", "upper-greek", "upper-hexadecimal",
+    "upper-latin", "upper-norwegian", "upper-roman", "uppercase", "urdu", "url",
+    "var", "vertical", "vertical-text", "visible", "visibleFill", "visiblePainted",
+    "visibleStroke", "visual", "w-resize", "wait", "wave", "wider",
+    "window", "windowframe", "windowtext", "words", "wrap", "wrap-reverse", "x-large", "x-small", "xor",
+    "xx-large", "xx-small"
+  ], valueKeywords = keySet(valueKeywords_);
+
+  var allWords = documentTypes_.concat(mediaTypes_).concat(mediaFeatures_).concat(mediaValueKeywords_)
+    .concat(propertyKeywords_).concat(nonStandardPropertyKeywords_).concat(colorKeywords_)
+    .concat(valueKeywords_);
+  CodeMirror.registerHelper("hintWords", "css", allWords);
+
+  function tokenCComment(stream, state) {
+    var maybeEnd = false, ch;
+    while ((ch = stream.next()) != null) {
+      if (maybeEnd && ch == "/") {
+        state.tokenize = null;
+        break;
+      }
+      maybeEnd = (ch == "*");
+    }
+    return ["comment", "comment"];
+  }
+
+  CodeMirror.defineMIME("text/css", {
+    documentTypes: documentTypes,
+    mediaTypes: mediaTypes,
+    mediaFeatures: mediaFeatures,
+    mediaValueKeywords: mediaValueKeywords,
+    propertyKeywords: propertyKeywords,
+    nonStandardPropertyKeywords: nonStandardPropertyKeywords,
+    fontProperties: fontProperties,
+    counterDescriptors: counterDescriptors,
+    colorKeywords: colorKeywords,
+    valueKeywords: valueKeywords,
+    tokenHooks: {
+      "/": function(stream, state) {
+        if (!stream.eat("*")) return false;
+        state.tokenize = tokenCComment;
+        return tokenCComment(stream, state);
+      }
+    },
+    name: "css"
+  });
+
+  CodeMirror.defineMIME("text/x-scss", {
+    mediaTypes: mediaTypes,
+    mediaFeatures: mediaFeatures,
+    mediaValueKeywords: mediaValueKeywords,
+    propertyKeywords: propertyKeywords,
+    nonStandardPropertyKeywords: nonStandardPropertyKeywords,
+    colorKeywords: colorKeywords,
+    valueKeywords: valueKeywords,
+    fontProperties: fontProperties,
+    allowNested: true,
+    lineComment: "//",
+    tokenHooks: {
+      "/": function(stream, state) {
+        if (stream.eat("/")) {
+          stream.skipToEnd();
+          return ["comment", "comment"];
+        } else if (stream.eat("*")) {
+          state.tokenize = tokenCComment;
+          return tokenCComment(stream, state);
+        } else {
+          return ["operator", "operator"];
+        }
+      },
+      ":": function(stream) {
+        if (stream.match(/\s*\{/, false))
+          return [null, null]
+        return false;
+      },
+      "$": function(stream) {
+        stream.match(/^[\w-]+/);
+        if (stream.match(/^\s*:/, false))
+          return ["variable-2", "variable-definition"];
+        return ["variable-2", "variable"];
+      },
+      "#": function(stream) {
+        if (!stream.eat("{")) return false;
+        return [null, "interpolation"];
+      }
+    },
+    name: "css",
+    helperType: "scss"
+  });
+
+  CodeMirror.defineMIME("text/x-less", {
+    mediaTypes: mediaTypes,
+    mediaFeatures: mediaFeatures,
+    mediaValueKeywords: mediaValueKeywords,
+    propertyKeywords: propertyKeywords,
+    nonStandardPropertyKeywords: nonStandardPropertyKeywords,
+    colorKeywords: colorKeywords,
+    valueKeywords: valueKeywords,
+    fontProperties: fontProperties,
+    allowNested: true,
+    lineComment: "//",
+    tokenHooks: {
+      "/": function(stream, state) {
+        if (stream.eat("/")) {
+          stream.skipToEnd();
+          return ["comment", "comment"];
+        } else if (stream.eat("*")) {
+          state.tokenize = tokenCComment;
+          return tokenCComment(stream, state);
+        } else {
+          return ["operator", "operator"];
+        }
+      },
+      "@": function(stream) {
+        if (stream.eat("{")) return [null, "interpolation"];
+        if (stream.match(/^(charset|document|font-face|import|(-(moz|ms|o|webkit)-)?keyframes|media|namespace|page|supports)\b/i, false)) return false;
+        stream.eatWhile(/[\w\\\-]/);
+        if (stream.match(/^\s*:/, false))
+          return ["variable-2", "variable-definition"];
+        return ["variable-2", "variable"];
+      },
+      "&": function() {
+        return ["atom", "atom"];
+      }
+    },
+    name: "css",
+    helperType: "less"
+  });
+
+  CodeMirror.defineMIME("text/x-gss", {
+    documentTypes: documentTypes,
+    mediaTypes: mediaTypes,
+    mediaFeatures: mediaFeatures,
+    propertyKeywords: propertyKeywords,
+    nonStandardPropertyKeywords: nonStandardPropertyKeywords,
+    fontProperties: fontProperties,
+    counterDescriptors: counterDescriptors,
+    colorKeywords: colorKeywords,
+    valueKeywords: valueKeywords,
+    supportsAtComponent: true,
+    tokenHooks: {
+      "/": function(stream, state) {
+        if (!stream.eat("*")) return false;
+        state.tokenize = tokenCComment;
+        return tokenCComment(stream, state);
+      }
+    },
+    name: "css",
+    helperType: "gss"
+  });
+
+});
diff --git a/libs/scripts/codemirror/format.js b/libs/scripts/codemirror/format.js
new file mode 100644
index 0000000..3286970
--- /dev/null
+++ b/libs/scripts/codemirror/format.js
@@ -0,0 +1,86 @@
+(function() {
+ 
+    CodeMirror.extendMode("css", {
+      commentStart: "/*",
+      commentEnd: "*/",
+      newlineAfterToken: function(type, content) {
+        return /^[;{}]$/.test(content);
+      }
+    });
+
+    // Comment/uncomment the specified range
+    CodeMirror.defineExtension("commentRange", function (isComment, from, to) {
+      var cm = this, curMode = CodeMirror.innerMode(cm.getMode(), cm.getTokenAt(from).state).mode;
+      cm.operation(function() {
+        if (isComment) { // Comment range
+          cm.replaceRange(curMode.commentEnd, to);
+          cm.replaceRange(curMode.commentStart, from);
+          if (from.line == to.line && from.ch == to.ch) // An empty comment inserted - put cursor inside
+            cm.setCursor(from.line, from.ch + curMode.commentStart.length);
+        } else { // Uncomment range
+          var selText = cm.getRange(from, to);
+          var startIndex = selText.indexOf(curMode.commentStart);
+          var endIndex = selText.lastIndexOf(curMode.commentEnd);
+          if (startIndex > -1 && endIndex > -1 && endIndex > startIndex) {
+            // Take string till comment start
+            selText = selText.substr(0, startIndex)
+            // From comment start till comment end
+              + selText.substring(startIndex + curMode.commentStart.length, endIndex)
+            // From comment end till string end
+              + selText.substr(endIndex + curMode.commentEnd.length);
+          }
+          cm.replaceRange(selText, from, to);
+        }
+      });
+    });
+   
+    // Applies automatic mode-aware indentation to the specified range
+    CodeMirror.defineExtension("autoIndentRange", function (from, to) {
+      var cmInstance = this;
+      this.operation(function () {
+        for (var i = from.line; i <= to.line; i++) {
+          cmInstance.indentLine(i, "smart");
+        }
+      });
+    });
+   
+    // Applies automatic formatting to the specified range
+    CodeMirror.defineExtension("autoFormatRange", function (from, to) {
+      var cm = this;
+      var outer = cm.getMode(), text = cm.getRange(from, to).split("\n");
+      var state = CodeMirror.copyState(outer, cm.getTokenAt(from).state);
+      var tabSize = cm.getOption("tabSize");
+   
+      var out = "", lines = 0, atSol = from.ch == 0;
+      function newline() {
+        out += "\n";
+        atSol = true;
+        ++lines;
+      }
+   
+      for (var i = 0; i < text.length; ++i) {
+        var stream = new CodeMirror.StringStream(text[i], tabSize);
+        while (!stream.eol()) {
+          var inner = CodeMirror.innerMode(outer, state);
+          var style = outer.token(stream, state), cur = stream.current();
+          stream.start = stream.pos;
+          if (!atSol || /\S/.test(cur)) {
+            out += cur;
+            atSol = false;
+          }
+          if (!atSol && inner.mode.newlineAfterToken &&
+              inner.mode.newlineAfterToken(style, cur, stream.string.slice(stream.pos) || text[i+1] || "", inner.state))
+            newline();
+        }
+        if (!stream.pos && outer.blankLine) outer.blankLine(state);
+        if (!atSol) newline();
+      }
+   
+      cm.operation(function () {
+        cm.replaceRange(out, from, to);
+        for (var cur = from.line + 1, end = from.line + lines; cur <= end; ++cur)
+          cm.indentLine(cur, "smart");
+        cm.setSelection(from, cm.getCursor(false));
+      });
+    });
+  })();
\ No newline at end of file
diff --git a/libs/scripts/codemirror/matchbrackets.js b/libs/scripts/codemirror/matchbrackets.js
new file mode 100644
index 0000000..2a14728
--- /dev/null
+++ b/libs/scripts/codemirror/matchbrackets.js
@@ -0,0 +1,150 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: https://codemirror.net/LICENSE
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+  var ie_lt8 = /MSIE \d/.test(navigator.userAgent) &&
+    (document.documentMode == null || document.documentMode < 8);
+
+  var Pos = CodeMirror.Pos;
+
+  var matching = {"(": ")>", ")": "(<", "[": "]>", "]": "[<", "{": "}>", "}": "{<", "<": ">>", ">": "<<"};
+
+  function bracketRegex(config) {
+    return config && config.bracketRegex || /[(){}[\]]/
+  }
+
+  function findMatchingBracket(cm, where, config) {
+    var line = cm.getLineHandle(where.line), pos = where.ch - 1;
+    var afterCursor = config && config.afterCursor
+    if (afterCursor == null)
+      afterCursor = /(^| )cm-fat-cursor($| )/.test(cm.getWrapperElement().className)
+    var re = bracketRegex(config)
+
+    // A cursor is defined as between two characters, but in in vim command mode
+    // (i.e. not insert mode), the cursor is visually represented as a
+    // highlighted box on top of the 2nd character. Otherwise, we allow matches
+    // from before or after the cursor.
+    var match = (!afterCursor && pos >= 0 && re.test(line.text.charAt(pos)) && matching[line.text.charAt(pos)]) ||
+        re.test(line.text.charAt(pos + 1)) && matching[line.text.charAt(++pos)];
+    if (!match) return null;
+    var dir = match.charAt(1) == ">" ? 1 : -1;
+    if (config && config.strict && (dir > 0) != (pos == where.ch)) return null;
+    var style = cm.getTokenTypeAt(Pos(where.line, pos + 1));
+
+    var found = scanForBracket(cm, Pos(where.line, pos + (dir > 0 ? 1 : 0)), dir, style || null, config);
+    if (found == null) return null;
+    return {from: Pos(where.line, pos), to: found && found.pos,
+            match: found && found.ch == match.charAt(0), forward: dir > 0};
+  }
+
+  // bracketRegex is used to specify which type of bracket to scan
+  // should be a regexp, e.g. /[[\]]/
+  //
+  // Note: If "where" is on an open bracket, then this bracket is ignored.
+  //
+  // Returns false when no bracket was found, null when it reached
+  // maxScanLines and gave up
+  function scanForBracket(cm, where, dir, style, config) {
+    var maxScanLen = (config && config.maxScanLineLength) || 10000;
+    var maxScanLines = (config && config.maxScanLines) || 1000;
+
+    var stack = [];
+    var re = bracketRegex(config)
+    var lineEnd = dir > 0 ? Math.min(where.line + maxScanLines, cm.lastLine() + 1)
+                          : Math.max(cm.firstLine() - 1, where.line - maxScanLines);
+    for (var lineNo = where.line; lineNo != lineEnd; lineNo += dir) {
+      var line = cm.getLine(lineNo);
+      if (!line) continue;
+      var pos = dir > 0 ? 0 : line.length - 1, end = dir > 0 ? line.length : -1;
+      if (line.length > maxScanLen) continue;
+      if (lineNo == where.line) pos = where.ch - (dir < 0 ? 1 : 0);
+      for (; pos != end; pos += dir) {
+        var ch = line.charAt(pos);
+        if (re.test(ch) && (style === undefined || cm.getTokenTypeAt(Pos(lineNo, pos + 1)) == style)) {
+          var match = matching[ch];
+          if (match && (match.charAt(1) == ">") == (dir > 0)) stack.push(ch);
+          else if (!stack.length) return {pos: Pos(lineNo, pos), ch: ch};
+          else stack.pop();
+        }
+      }
+    }
+    return lineNo - dir == (dir > 0 ? cm.lastLine() : cm.firstLine()) ? false : null;
+  }
+
+  function matchBrackets(cm, autoclear, config) {
+    // Disable brace matching in long lines, since it'll cause hugely slow updates
+    var maxHighlightLen = cm.state.matchBrackets.maxHighlightLineLength || 1000;
+    var marks = [], ranges = cm.listSelections();
+    for (var i = 0; i < ranges.length; i++) {
+      var match = ranges[i].empty() && findMatchingBracket(cm, ranges[i].head, config);
+      if (match && cm.getLine(match.from.line).length <= maxHighlightLen) {
+        var style = match.match ? "CodeMirror-matchingbracket" : "CodeMirror-nonmatchingbracket";
+        marks.push(cm.markText(match.from, Pos(match.from.line, match.from.ch + 1), {className: style}));
+        if (match.to && cm.getLine(match.to.line).length <= maxHighlightLen)
+          marks.push(cm.markText(match.to, Pos(match.to.line, match.to.ch + 1), {className: style}));
+      }
+    }
+
+    if (marks.length) {
+      // Kludge to work around the IE bug from issue #1193, where text
+      // input stops going to the textare whever this fires.
+      if (ie_lt8 && cm.state.focused) cm.focus();
+
+      var clear = function() {
+        cm.operation(function() {
+          for (var i = 0; i < marks.length; i++) marks[i].clear();
+        });
+      };
+      if (autoclear) setTimeout(clear, 800);
+      else return clear;
+    }
+  }
+
+  function doMatchBrackets(cm) {
+    cm.operation(function() {
+      if (cm.state.matchBrackets.currentlyHighlighted) {
+        cm.state.matchBrackets.currentlyHighlighted();
+        cm.state.matchBrackets.currentlyHighlighted = null;
+      }
+      cm.state.matchBrackets.currentlyHighlighted = matchBrackets(cm, false, cm.state.matchBrackets);
+    });
+  }
+
+  CodeMirror.defineOption("matchBrackets", false, function(cm, val, old) {
+    if (old && old != CodeMirror.Init) {
+      cm.off("cursorActivity", doMatchBrackets);
+      if (cm.state.matchBrackets && cm.state.matchBrackets.currentlyHighlighted) {
+        cm.state.matchBrackets.currentlyHighlighted();
+        cm.state.matchBrackets.currentlyHighlighted = null;
+      }
+    }
+    if (val) {
+      cm.state.matchBrackets = typeof val == "object" ? val : {};
+      cm.on("cursorActivity", doMatchBrackets);
+    }
+  });
+
+  CodeMirror.defineExtension("matchBrackets", function() {matchBrackets(this, true);});
+  CodeMirror.defineExtension("findMatchingBracket", function(pos, config, oldConfig){
+    // Backwards-compatibility kludge
+    if (oldConfig || typeof config == "boolean") {
+      if (!oldConfig) {
+        config = config ? {strict: true} : null
+      } else {
+        oldConfig.strict = config
+        config = oldConfig
+      }
+    }
+    return findMatchingBracket(this, pos, config)
+  });
+  CodeMirror.defineExtension("scanForBracket", function(pos, dir, style, config){
+    return scanForBracket(this, pos, dir, style, config);
+  });
+});
diff --git a/libs/scripts/show-hint.js b/libs/scripts/codemirror/show-hint.js
similarity index 100%
rename from libs/scripts/show-hint.js
rename to libs/scripts/codemirror/show-hint.js