diff --git a/public/stylesheets/courses.css b/public/stylesheets/courses.css
index 5f75bdf9b..d27c0efbc 100644
--- a/public/stylesheets/courses.css
+++ b/public/stylesheets/courses.css
@@ -562,7 +562,7 @@ a.talkmain_name{ color:#ff5722;}
 a:hover.talkmain_name{ color:#d33503;}
 .talkmain_tit{ color:#0781b4; width:450px; display:block; }
 .talklist_main{   }
-.talkWrapArrow{ display:block; float:right; margin-right:10px;background:url(../images/arrow.png) 0 0 no-repeat; height:7px; width:13px;}
+/*.talkWrapArrow{ display:block; float:right; margin-right:10px;background:url(../images/arrow.png) 0 0 no-repeat; height:7px; width:13px;}*/
 .talkConIpt{ background:#f2f2f2; }
 .talkWrapBox{ width:610px; margin-left:60px; }
 .inputFeint{ border:1px solid #d9d9d9; background:#fff; width:583px; height:50px; margin:10px;  margin-bottom:5px;color:#666;}
@@ -593,8 +593,8 @@ a:hover.Reply_pic{border:1px solid #64bdd9;}
 .hwork_new_left{ width:220px; float:left; }
 .hwork_new_right{ width:350px; float:left; margin-left:40px;}
 .w305{ width:305px;}
-.icon_add{  background:url(../images/courses/icons.png) 0px -310px no-repeat; width:16px; height:27px; display:block;float:left; margin-right:5px;}
-a:hover.icon_add{background:url(../images/courses/icons.png) -20px -310px no-repeat;}
+.icon_add{background:url(images/icons.png) 0px -310px no-repeat; width:16px; height:27px; display:block;float:left; margin-right:5px;}
+a:hover.icon_add{background:url(images/icons.png) -20px -310px no-repeat;}