给codemirror增加更多插件

_server/CodeMirror/codemirror.css

@@ -809,3 +809,32 @@ li.CodeMirror-hint-active {
 .CodeMirror-Tern-farg-current { text-decoration: underline; }
 .CodeMirror-Tern-type { color: #07c; }
 .CodeMirror-Tern-fhint-guess { opacity: .7; }
+
+.CodeMirror-foldmarker {
+  color: blue;
+  text-shadow: #b9f 1px 1px 2px, #b9f -1px -1px 2px, #b9f 1px -1px 2px, #b9f -1px 1px 2px;
+  font-family: arial;
+  line-height: .3;
+  cursor: pointer;
+}
+.CodeMirror-foldgutter {
+  width: .7em;
+}
+.CodeMirror-foldgutter-open,
+.CodeMirror-foldgutter-folded {
+  cursor: pointer;
+}
+.CodeMirror-foldgutter-open:after {
+  content: "\25BE";
+}
+.CodeMirror-foldgutter-folded:after {
+  content: "\25B8";
+}
+
+.CodeMirror-focused .cm-matchhighlight {
+  background-image: url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAYAAABytg0kAAAAFklEQVQI12NgYGBgkKzc8x9CMDAwAAAmhwSbidEoSQAAAABJRU5ErkJggg==);
+  background-position: bottom;
+  background-repeat: repeat-x;
+}
+.cm-matchhighlight {background-color: lightgreen}
+.CodeMirror-selection-highlight-scrollbar {background-color: yellowgreen}