diff --git a/app/wechat/view/auto/form.html b/app/wechat/view/auto/form.html
index 3fe5bfed2..839ba6e05 100644
--- a/app/wechat/view/auto/form.html
+++ b/app/wechat/view/auto/form.html
@@ -26,7 +26,7 @@
     }
 </style>
 
-<div class="nowrap think-box-shadow" style="width:910px">
+<div class="think-box-shadow nowrap" style="width:910px">
     <div class='mobile-preview inline-block'>
         <div class='mobile-header'>公众号</div>
         <div class='mobile-body' data-iframe-box></div>