diff --git a/public/assets/wechat/blog_detail.html b/public/assets/wechat/blog_detail.html
index dded5d644..39f687f68 100644
--- a/public/assets/wechat/blog_detail.html
+++ b/public/assets/wechat/blog_detail.html
@@ -29,11 +29,11 @@
                 </div>
                 <div class="cl"></div>
             </div>
-            <div id="all_blog_reply">
+            <div class="mb50" id="all_blog_reply">
 
                 <div ng-if="blog.blog_comment_children == ''" style="border-top:1px solid #ccc;"></div>
                 <div class="post-reply-wrap" ng-repeat="journal in blog.blog_comment_children">
-                    <div class="post-reply-row mb50">
+                    <div class="post-reply-row">
                         <div class="post-avatar fl mr10"><img ng-src="{{journal.user.img_url}}" width="30" height="30" class="border-radius img-circle" /></div>
                         <div class="post-dynamic-author hidden fl">
                             {{journal.user.realname}}
diff --git a/public/assets/wechat/course_discussion.html b/public/assets/wechat/course_discussion.html
index 83b4c70c3..c5e6ce7c3 100644
--- a/public/assets/wechat/course_discussion.html
+++ b/public/assets/wechat/course_discussion.html
@@ -28,10 +28,10 @@
                     </div>
                     <div class="cl"></div>
                 </div>
-                <div id="all_course_message_reply">
+                <div class="mb50" id="all_course_message_reply">
                     <div ng-if="discussion.message_children == ''" style="border-top:1px solid #ccc;"></div>
                     <div class="post-reply-wrap" ng-repeat="journal in discussion.message_children">
-                        <div class="post-reply-row mb50">
+                        <div class="post-reply-row">
                             <div class="post-avatar fl mr10"><img ng-src="{{journal.user.img_url}}" width="30" height="30" class="border-radius img-circle" /></div>
                             <div class="post-dynamic-author hidden fl">
                                 {{journal.user.realname}}
diff --git a/public/assets/wechat/course_notice.html b/public/assets/wechat/course_notice.html
index 3335b78b7..6193726c0 100644
--- a/public/assets/wechat/course_notice.html
+++ b/public/assets/wechat/course_notice.html
@@ -27,10 +27,10 @@
                 </div>
                 <div class="cl"></div>
             </div>
-            <div id="all_news_reply">
+            <div class="mb50" id="all_news_reply">
                 <div ng-if="news.comments == ''" style="border-top:1px solid #ccc;"></div>
                 <div class="post-reply-wrap" ng-repeat="comments in news.comments">
-                    <div class="post-reply-row mb50">
+                    <div class="post-reply-row">
                         <div class="post-avatar fl mr10"><img ng-src="{{comments.author.img_url}}" width="30" height="30" class="border-radius img-circle" /></div>
                         <div class="post-dynamic-author hidden fl">
                             {{comments.author.realname}}
diff --git a/public/assets/wechat/homework_detail.html b/public/assets/wechat/homework_detail.html
index 2f6d60c88..9541678b4 100644
--- a/public/assets/wechat/homework_detail.html
+++ b/public/assets/wechat/homework_detail.html
@@ -31,11 +31,11 @@
                 </div>
                 <div class="cl"></div>
             </div>
-            <div id="all_homework_reply">
+            <div class="mb50" id="all_homework_reply">
 
                 <div ng-if="homework.journals_for_messages == ''" style="border-top:1px solid #ccc;"></div>
                 <div class="post-reply-wrap" ng-repeat="journal in homework.journals_for_messages">
-                    <div class="post-reply-row mb50">
+                    <div class="post-reply-row">
                         <div class="post-avatar fl mr10"><img ng-src="{{journal.user.img_url}}" width="30" height="30" class="border-radius img-circle" /></div>
                         <div class="post-dynamic-author hidden fl">
                             {{journal.user.realname}}
diff --git a/public/assets/wechat/issue_detail.html b/public/assets/wechat/issue_detail.html
index fe6115017..bf5f87994 100644
--- a/public/assets/wechat/issue_detail.html
+++ b/public/assets/wechat/issue_detail.html
@@ -33,10 +33,10 @@
                 </div>
                 <div class="cl"></div>
             </div>
-            <div id="all_issue_reply">
+            <div class="mb50" id="all_issue_reply">
                 <div ng-if="issue.issue_journals == ''" style="border-top:1px solid #ccc;"></div>
                 <div class="post-reply-wrap" ng-repeat="journal in issue.issue_journals">
-                    <div class="post-reply-row mb50">
+                    <div class="post-reply-row">
                         <div class="post-avatar fl mr10"><img ng-src="{{journal.user.img_url}}" width="30" height="30" class="border-radius img-circle" /></div>
                         <div class="post-dynamic-author hidden fl">
                             {{journal.user.realname}}
diff --git a/public/assets/wechat/jour_message_detail.html b/public/assets/wechat/jour_message_detail.html
index b880c65ec..c2a767bef 100644
--- a/public/assets/wechat/jour_message_detail.html
+++ b/public/assets/wechat/jour_message_detail.html
@@ -27,11 +27,11 @@
                 </div>
                 <div class="cl"></div>
             </div>
-            <div id="all_message_reply">
+            <div class="mb50" id="all_message_reply">
 
                 <div ng-if="message.child_reply == ''" style="border-top:1px solid #ccc;"></div>
                 <div class="post-reply-wrap" ng-repeat="journal in message.child_reply">
-                    <div class="post-reply-row mb50">
+                    <div class="post-reply-row">
                         <div class="post-avatar fl mr10"><img ng-src="{{journal.user.img_url}}" width="30" height="30" class="border-radius img-circle" /></div>
                         <div class="post-dynamic-author hidden fl">
                             {{journal.user.realname}}
diff --git a/public/assets/wechat/project_discussion.html b/public/assets/wechat/project_discussion.html
index 1965de426..38802f520 100644
--- a/public/assets/wechat/project_discussion.html
+++ b/public/assets/wechat/project_discussion.html
@@ -29,10 +29,10 @@
                 <div class="cl"></div>
             </div>
 
-            <div id="all_course_message_reply">
+            <div class="mb50" id="all_course_message_reply">
                 <div ng-if="discussion.message_children == ''" style="border-top:1px solid #ccc;"></div>
                 <div class="post-reply-wrap" ng-repeat="journal in discussion.message_children">
-                    <div class="post-reply-row mb50">
+                    <div class="post-reply-row">
                         <div class="post-avatar fl mr10"><img ng-src="{{journal.user.img_url}}" width="30" height="30" class="border-radius img-circle" /></div>
                         <div class="post-dynamic-author hidden fl">
                             {{journal.user.realname}}
diff --git a/public/stylesheets/weui/weixin.css b/public/stylesheets/weui/weixin.css
index 8b980d33f..5349aa23d 100644
--- a/public/stylesheets/weui/weixin.css
+++ b/public/stylesheets/weui/weixin.css
@@ -126,7 +126,7 @@ a.underline {text-decoration:underline;}
 .post-reply-content a {color:#136ec2;}
 .post-reply-date, .post-reply-trigger {font-size:13px;}
 .post-input-container {position:relative; padding-right:70px;}
-.copy-input {width:100%; height:28px; line-height:28px; padding:0 5px; vertical-align: middle; font-size:12px; border-radius:3px; position:absolute; left:-9999em;}
+.copy-input {width:100%; height:28px; line-height:28px; padding:0 5px; vertical-align: middle; font-size:12px; border-radius:3px; position:absolute; left:-999em;}
 .post-reply-input {width:100%; height:28px; max-height:84px; line-height:28px; vertical-align: middle; font-size:13px; border:1px solid #e6e6e6; outline:none; padding:0 5px; margin:0; border-radius:3px; overflow-y:auto; resize:none; background-color:#f0eff4;}
 .post-reply-submit {position:absolute; font-size:13px; height:30px; line-height:30px; vertical-align:middle; padding:0 8px; color:#fff; background-color:#269ac9; outline:none; border:none; top:0; right:0;}
 .reply-icon {background:url(/images/wechat/icon_list.gif) -150px -155px no-repeat; width:20px; height:20px; display:inline-block; vertical-align:middle;}