#1340 修复360安全浏览器中课程动态显示错误

解决方案：修改页面css

app/views/courses/show.html.erb

@@ -9,7 +9,7 @@
                 <div>
                   <table class="underline-evreycontent" style="font-size: 14px;">
                     <tr>
-                      <td colspan="2" valign="top" width="50"><%= image_tag(url_to_avatar(e.event_author), :class => "avatar") %></td>
+                      <td valign="top" width="50"><%= image_tag(url_to_avatar(e.event_author), :class => "avatar") %></td>
                       <td>
                         <table width="580px" border="0" style="width: 100%;table-layout: fixed">
                           <tr>