diff --git a/public/stylesheets/courses.css b/public/stylesheets/courses.css
index 80bee2cf0..54d30cdb5 100644
--- a/public/stylesheets/courses.css
+++ b/public/stylesheets/courses.css
@@ -112,15 +112,15 @@ ul.wlist li a:hover{ background:#15bccf; color:#fff; text-decoration:none;}
 .re_search{ margin-top:7px; margin-left:5px;}
 .re_schbox{ width:240px; height:24px; border:1px solid #64bdd9; color:#666666;}
 .re_schbtn{ width:60px; height:26px;  color:#fff; margin-right:5px; border:none;  margin-left:0px; }
-.re_fabu { display:block; width:90px; height:30px; font-size:14px; color:#fff; text-align:center; padding-top:10px; }
-.re_fabu:hover{background:#55a1b9;}
+a.re_fabu { display:block; width:90px; height:30px; font-size:14px; color:#fff; text-align:center; padding-top:10px; }
+a:hover.re_fabu{background:#55a1b9;}
 .re_con{ margin:5px; width:665px;}
 .re_con_top{color:#494949; }
 .re_con_top span{ color:#999999; font-weight:bold;}
-.re_select{ display:block; width:88px; height:20px; border:1px solid #ff9900; color:#ff9900;  margin-left:10px; padding-top:2px;}
-.re_select:hover{ background:#ff9900; color:#fff; text-decoration:none;}
-.re_open{display:block; width:46px; height:19px; border:1px solid #64bdd9; color:#64bdd9;  margin-left:10px;padding-top:3px;}
-.re_open:hover{ background:#64bdd9; color:#fff; text-decoration:none;}
+a.re_select{ display:block;height:20px; border:1px solid #ff9900; color:#ff9900;  margin-left:10px; padding:2px 5px 1px;}
+a:hover.re_select{ background:#ff9900; color:#fff; text-decoration:none;}
+a.re_open{display:block; width:46px; height:19px; border:1px solid #64bdd9; color:#64bdd9;  margin-left:10px;padding-top:3px;}
+a:hover.re_open{ background:#64bdd9; color:#fff; text-decoration:none;}
 a.re_de{ color:#6883b6; margin-left:15px;}
 .re_con_box{ border-bottom:1px dashed #dadada; padding-bottom:10px; margin-bottom:10px;}
 /****资源库***/