diff --git a/theme/rebase/css/display.css b/theme/rebase/css/display.css
index 98e7a323d6..ab75165670 100644
--- a/theme/rebase/css/display.css
+++ b/theme/rebase/css/display.css
@@ -687,6 +687,7 @@ display:none;
     float: left;
     position: relative;
     margin-bottom: 10px;
+    width: 100%;
 }
 
 #aside_primary .notices li {