diff --git a/doc/zh_CN/features.html b/doc/zh_CN/features.html
index 525e5b8..51d6953 100644
--- a/doc/zh_CN/features.html
+++ b/doc/zh_CN/features.html
@@ -9,7 +9,7 @@
         <h1>特性列表</h1>
 
         <ul>
-            <li>代码高亮：Go/HTML/JavaScript/Markdown 等</li>
+            <li>代码高亮、折叠：Go/HTML/JavaScript/Markdown 等</li>
             <li>自动完成：Go/HTML 等</li>
             <li>格式化：Go/HTML/JSON 等</li>
             <li>运行：支持同时运行多个程序，方便联调</li>
diff --git a/view/shell.html b/view/shell.html
index 253f393..e75d00d 100644
--- a/view/shell.html
+++ b/view/shell.html
@@ -6,12 +6,12 @@
         <link rel="stylesheet" href="{{.Wide.StaticServer}}/static/css/shell.css?{{.Wide.StaticResourceVersion}}">
     </head>
     <body>
-        <input id="shellInput" />
-        
+        <input id="shellInput" placeholder="Command..."/>
+
         <div>
             <textarea id="shellOutput" rows="10" ></textarea>
         </div>
-        
+
         <script type="text/javascript">
             var config = {
                 channel: {
