diff --git a/app/views/layouts/_base_feedback.html.erb b/app/views/layouts/_base_feedback.html.erb
index 2039735bc..c4479b43a 100644
--- a/app/views/layouts/_base_feedback.html.erb
+++ b/app/views/layouts/_base_feedback.html.erb
@@ -8,7 +8,7 @@
 
 html{ overflow-x:hidden;}
 .custom_service p img {display: inline; margin-top:-5px; vertical-align:middle;}
-.scrollsidebar{position:absolute; z-index:999; top:150px;}
+.scrollsidebar{position:absolute; z-index:999; top:150px;background:none !important;}
 .side_content{width:154px; height:auto; overflow:hidden; float:left; }
 .side_content .side_list {width:154px;overflow:hidden;}
 .show_btn{ width:0; height:112px; overflow:hidden; margin-top:50px; float:left; cursor:pointer;}