diff --git a/media/css/seahub.css b/media/css/seahub.css
index 478cb0c36c..403902e691 100644
--- a/media/css/seahub.css
+++ b/media/css/seahub.css
@@ -862,4 +862,8 @@ p {
 .view-link-alert p {
     display: inline-block;
 }
-
+/*bottom bar*/
+#bottom-bar button {
+    color:#fff;
+    background:#646464;
+}