组织历史版本弹框文件夹图标问题

app/views/attachments/_show_attachment_history.html.erb

@@ -16,7 +16,7 @@
         <span class="attachment">
           <%= link_to truncate(history.filename,length: 35, omission: '...'),
                       download_history_attachment_path(history.id, history.filename),
-                      :title => history.filename+"\n"+history.description.to_s, :style => "overflow: hidden; white-space: nowrap;text-overflow: ellipsis; max-width:300px;",:class => "linkBlue f_14 f_b link_file_a2 fl"  %>
+                      :title => history.filename+"\n"+history.description.to_s, :style => "overflow: hidden; white-space: nowrap;text-overflow: ellipsis; max-width:300px;",:class => "linkBlue f_14 f_b upload_filename fl"  %>
           <span class="fr">版本号：<%= history.version %></span>
           <div class="cl"></div>
         </span>

public/stylesheets/css/org.css

@@ -102,8 +102,6 @@ div.flash {margin-top :0px !important}
 .blueBtn{ width:60px; height:26px; color:#FFF; border:none; background-color:#269ac9; cursor:pointer; padding-left:0px; text-align:center;}
 .blueBtn:hover {background-color:#298fbd;}
 
-a.link_file_a2{ background:url(../images/pic_file.png) 0 -15px no-repeat; padding-left: 20px;}
-
 /*名师榜20160505*/
 .function-row {border-bottom:1px dashed #b2b2b2; padding-bottom:16px;}
 .teacher-list-search {width:310px; height:23px; border:1px solid #ccc; border-right:none; outline:none;}