diff --git a/public/stylesheets/application.css b/public/stylesheets/application.css
index b42efdabd..4b6b681c7 100644
--- a/public/stylesheets/application.css
+++ b/public/stylesheets/application.css
@@ -641,7 +641,6 @@ span.forums-avatar-right{
 /*added by bai*/
 .user_underlinescore{
 	margin: 1px;
-	padding: 1px;
 	width:700px;
 	height:1px;
 	background-color:#15bccf;
@@ -1106,7 +1105,6 @@ ul.user_course_sort li{list-style-type:none;
 }
 .user_underline{
 	margin:1px;
-	padding:1px;
 	width:240px;
 	height:1px;
 	background-color:#15bccf;
@@ -1126,7 +1124,6 @@ ul.user_course_sort li{list-style-type:none;
 
 .user_underline2{
 	margin:1px;
-	padding:1px;
 	width:240px;
 	height:1px;
 	background-color:#c6e9fe;
@@ -1134,7 +1131,6 @@ ul.user_course_sort li{list-style-type:none;
 }
 .user_underline3{
 	margin: 1px;
-	padding:1px;
 	width:120px;
 	height:1px;
 	background-color:#c6e9fe;
@@ -1143,7 +1139,6 @@ ul.user_course_sort li{list-style-type:none;
 }
 .homepage_underline{
 	margin:1px;
-	padding:1px;
 	width:240px;
 	height:1px;
 	background-color:#c6e9fe;
@@ -3063,7 +3058,6 @@ div.repos_explain{
 /* new linchun compitition */
 .contest_underline{
 	margin:1px;
-	padding:1px;
 	width:900px;
 	height:0.5px;
 	background-color:#aaa;