解决CSS冲突

app/views/users/user_messages.html.erb

@@ -1,10 +1,10 @@
 <div id="RSide" class="fl">
 <div class="homepageRight">
-<div class="resources">
+
 <div class="resourcesBanner">
   <div class="bannerName">消息</div>
   <ul class="resourcesSelect">
-    <li class="resourcesSelected"><a href="javascript:void(0);" class="resourcesIcon"></a>
+    <li class="resourcesSelected2"><a href="javascript:void(0);" class="resourcesIcon2"></a>
       <ul class="newsType">
         <li><a href="javascript:void(0);" class="resourcesGrey"><%= link_to "全部",{:controller=> 'users', :action => 'user_messages', id: User.current.id, host: Setting.host_user} %></a></li>
         <%# 课程相关消息 %>
@@ -250,5 +250,5 @@
 <% end %>
 </div>
 </div>
-</div>
+
 </div>

public/stylesheets/public_new.css

@@ -592,9 +592,9 @@ input.sendSourceText {font-size:14px;color:#ffffff;background-color:#64bdd9;}
 /*.resourcesBanner {width:730px; height:40px; background-color:#eaeaea; margin-bottom:10px;}*/
 /*.bannerName {background:#64bdd9; color:#ffffff; height:40px; line-height:40px; width:90px; text-align:center; font-weight:normal; vertical-align:middle; font-size: 16px; float:left;}*/
 /*.resourcesSelect {width:40px; height:40px; float:right; position:relative;}*/
-/*.resourcesSelected {width:25px; height:20px;}*/
-/*.resourcesIcon {margin-top:15px; display:block; position:relative; background:url(images/resource_icon_list.png) 0px 0px no-repeat; width:25px; height:20px;}*/
-/*.resourcesIcon:hover { background:url(images/resource_icon_list.png) 0px -25px no-repeat;}*/
+.resourcesSelected2 {width:25px; height:20px;}
+.resourcesIcon2 {margin-top:20px; display:block; position:relative; background:url(images/resource_icon_list.png) 0px 0px no-repeat; width:25px; height:20px;}
+.resourcesIcon2:hover { background:url(images/resource_icon_list.png) 0px -25px no-repeat;}
 /*.resourcesType {width:50px; background-color:#ffffff; float:left; list-style:none; position:absolute; border:1px solid #eaeaea; border-radius:5px; top:35px; padding:5px 10px; left:-30px; font-size:12px; color:#888888; display:none;}*/
 /*a.resourcesGrey {font-size:12px; color:#888888;}*/
 /*a.resourcesGrey:hover {font-size:12px; color:#15bccf;}*/