diff --git a/app/views/courses/member.html.erb b/app/views/courses/member.html.erb
index 2599760ad..803be3731 100644
--- a/app/views/courses/member.html.erb
+++ b/app/views/courses/member.html.erb
@@ -56,7 +56,7 @@
 </script>
 <%= stylesheet_link_tag  'course_group', :media => 'all' %>
 <script type="text/javascript" src="javascripts/jquery-1.8.3-ui-1.9.2-ujs-2.0.3.js"></script>
-<div class="st_list">
+<div class="st_list" id="member_of_course">
   <div class="st_search" style="margin-left: 14px" >
     <span class="f_l"><%= @subPage_title %></span>
         <span id = "search_members">
diff --git a/public/stylesheets/course_group.css b/public/stylesheets/course_group.css
index b6c7f4f8c..c160e1730 100644
--- a/public/stylesheets/course_group.css
+++ b/public/stylesheets/course_group.css
@@ -1,4 +1,4 @@
-body{ font-size:12px; font-family:"微软雅黑","宋体"; line-height:1.9; background:#fff; font-style:normal;}
+#member_of_course{ font-size:12px; font-family:"微软雅黑","宋体"; line-height:1.9; background:#fff; font-style:normal;}
 div,html,img,ul,li,p,body,h1,h2,h3,h4,p,a,table,tr,td,fieldset,input,span,textarea,form{ margin:0; padding:0;}
 div,img,tr,td,textarea,form{ border:0;}
 table,tr,td{border:0; cellspacing:0; cellpadding:0;}