课程讨论区样式混乱的问题

app/views/users/_course_message.html.erb

@@ -35,11 +35,11 @@
         更新时间：<%= format_time(CourseActivity.where("course_act_type='#{activity.class}' and course_act_id =#{activity.id}").first.updated_at) %>
       </div>
       <div class="cl"></div>
-          <% if activity.parent_id.nil? %>
+      <% if activity.parent_id.nil? %>
           <% content = activity.content%>
-          <% else %>
+      <% else %>
           <% content = activity.parent.content%>
-          <% end %>
+      <% end %>
       <%=render :partial =>"users/intro_content", :locals=>{:user_activity_id =>user_activity_id, :content=>content} %>
         <% if activity.status == 1 %>
             <span style="font-family:Calibri;font-size:10.5000pt;"><%= activity.created_on.year %></span>
@@ -49,7 +49,6 @@
             <span style="font-family:Calibri;font-size:10.5000pt;"><%= activity.created_on.day %></span>
             <span style="font-size:10.5000pt;">日</span>
         <% end %>
-      </div>
       <div class="cl"></div>
       <div id="intro_content_show_<%= user_activity_id%>" class="fr" style="display:none;"><a href="javascript:void(0);" class="linkBlue">[展开]</a></div>
       <div id="intro_content_hide_<%= user_activity_id%>" class="fr" style="display:none;"><a href="javascript:void(0);" class="linkBlue">[收起]</a></div>