diff --git a/css/style.css b/css/style.css
index 34a825dd303642a649f4002d8b1a0a751ddf3341..c94c041ab5bedbdb26be6894cfb94e762e75551e 100644
--- a/css/style.css
+++ b/css/style.css
@@ -2124,8 +2124,8 @@ a {
   border: 1px solid #f00;
 }
 #header .header-nav .social a.CSDN {
-  background: url("../img/csdn.png") center no-repeat #cc0001;
-  border: 1px solid #cc0001;
+  background: url("../img/csdn.png") center no-repeat #fff;
+  border: 1px solid #fff;
 }
 #header .header-nav .social a.rss {
   background: url("../img/rss.png") center no-repeat #ef7522;