diff --git a/public/javascripts/wechat/app.js b/public/javascripts/wechat/app.js
index 5d94afca4..0817eaa58 100644
--- a/public/javascripts/wechat/app.js
+++ b/public/javascripts/wechat/app.js
@@ -136,7 +136,7 @@ app.factory('common', function($http, auth, $routeParams){
             url: apiUrl+ "new_comment/"+id,
             data: userInfo
         }).then(function successCallback(response) {
-            alert("提交成功");
+            //alert("提交成功");
             //数据提交完成,回复按钮启用
             data.disabled = false;
             if(typeof cb === 'function'){
@@ -410,11 +410,16 @@ app.directive('inputAuto',function(){
         scope: {},
         link: function(scope, element){
                 var copyContainer = element.parent().children().eq(0);
+                var sendButton = element.parent().next();
                 element.on('input',function(){
+                    console.log(sendButton);
                     copyContainer.html(element[0].value);
                     var textHeight = copyContainer[0].scrollHeight;
                     element.css('height', textHeight + 'px');
                 });
+                sendButton.on('click',function(){
+                    element.css('height','28px');
+                });
             }
     }
 });
diff --git a/public/stylesheets/weui/weixin.css b/public/stylesheets/weui/weixin.css
index f0e336563..0455c81e3 100644
--- a/public/stylesheets/weui/weixin.css
+++ b/public/stylesheets/weui/weixin.css
@@ -70,7 +70,7 @@ a.underline {text-decoration:underline;}
 .post-reply-date, .post-reply-trigger {font-size:13px;}
 .post-input-container {padding-right:2px;}
 .copy-input {width:100%; height:28px; line-height:28px; border-radius:3px; position:absolute; left:-9999em;}
-.post-reply-input {width:100%; height:28px; max-height:84px; line-height:28px; border:1px solid #e6e6e6; outline:none; padding:0; margin:0; border-radius:3px; overflow-y:hidden; resize:none;}
+.post-reply-input {width:100%; height:28px; max-height:84px; line-height:28px; border:1px solid #e6e6e6; outline:none; padding:0; margin:0; border-radius:3px; overflow-y:auto; resize:none;}
 .post-reply-submit {font-size:13px; padding:3px 8px; color:#fff; background-color:#269ac9; outline:none; border:none; display:inline-block;}
 .reply-icon {background:url(/images/wechat/wechat_icon.gif) -100px 1px no-repeat; width:20px; height:20px; display:inline-block; vertical-align:middle;}
 .praise-icon {background:url(/images/wechat/wechat_icon.gif) -100px -38px no-repeat; width:20px; height:20px; display:inline-block; vertical-align:middle;}