diff --git a/demo.html b/demo.html
index dfa3490..c84c73a 100644
--- a/demo.html
+++ b/demo.html
@@ -7,6 +7,10 @@
     <title>anki-md模板测试</title>
   </head>
   <body>
+    <textarea>
+      # 你好
+      * 哈哈
+    </textarea>
     <textarea rows="30" cols="50" class="md-content">
     ```
       <div>??--->>><<<</div>
