diff --git a/static/js/editor.js b/static/js/editor.js
index 9a5046d..e374c2a 100644
--- a/static/js/editor.js
+++ b/static/js/editor.js
@@ -167,6 +167,7 @@ var editors = {
 
         var editor = CodeMirror.fromTextArea(document.getElementById("editor" + id), {
             lineNumbers: true,
+			styleActiveLine: true,
             theme: 'lesser-dark',
             indentUnit: 4,
             extraKeys: {
diff --git a/view/index.html b/view/index.html
index 325f9ff..1f5aa5f 100644
--- a/view/index.html
+++ b/view/index.html
@@ -78,6 +78,7 @@
         <script type="text/javascript" src="{{.Wide.StaticServer}}/static/js/lib/ztree/jquery.ztree.all-3.5.min.js"></script>
 
         <script type="text/javascript" src="{{.Wide.StaticServer}}/static/js/lib/codemirror-4.5/codemirror.js"></script>
+		<script type="text/javascript" src="{{.Wide.StaticServer}}/static/js/lib/codemirror-4.5/addon/selection/active-line.js"></script>
         <script type="text/javascript" src="{{.Wide.StaticServer}}/static/js/lib/codemirror-4.5/addon/hint/show-hint.js"></script>
         <script type="text/javascript" src="{{.Wide.StaticServer}}/static/js/lib/codemirror-4.5/addon/hint/anyword-hint.js"></script>
         <script type="text/javascript" src="{{.Wide.StaticServer}}/static/js/lib/codemirror-4.5/addon/display/fullscreen.js"></script>