diff --git a/themes/bartik/css/style.css b/themes/bartik/css/style.css
index e174be439ab389d7702607da7fc670483e705cf4..5c607ff83b3130276ddac302d14fd86d250d4a8a 100644
--- a/themes/bartik/css/style.css
+++ b/themes/bartik/css/style.css
@@ -1175,6 +1175,7 @@ div.vertical-tabs .vertical-tabs-panes fieldset.vertical-tabs-pane {
   text-indent: -9999px;
   border: 1px solid #ccc;
   background: url(../images/search-button.png) no-repeat center center;
+  overflow: hidden;
 }
 #search-form .form-item-keys label {
   display: block;