diff --git a/static/html/chat_main.html b/static/html/chat_main.html
index ec8d9ba..7d2b915 100644
--- a/static/html/chat_main.html
+++ b/static/html/chat_main.html
@@ -15,7 +15,7 @@
         html, body {overflow:hidden;height: 100%;padding: 0;margin: 0;background-color: #f5f5f5;}
         .el-row{width:100%}
         .chatBg{background: #fff;border: solid 1px #e6e6e6;overflow: hidden;}
-        .chatLeft{height:100%;margin-left: 4px;}
+        .chatLeft{height:100%;margin-left: 4px;overflow:auto;}
         .sw-bg{background: #fff;border: solid 1px #e6e6e6;boder-top:none;padding:5px 10px;}
         .chatBgContext .el-row{margin-bottom: 5px;}
         .chatBgContext{position: relative;height: 100%;}