diff --git a/css/default.css b/css/default.css
index 859cf30b4..a388d814f 100644
--- a/css/default.css
+++ b/css/default.css
@@ -116,7 +116,7 @@ a:active {color:#000;text-decoration:underline}
 .cke_sc_def {margin:0 0 5px;padding:10px;border:1px solid #ccc;background:#f7f7f7;text-align:center}
 .cke_sc_def dl{margin:0 0 5px;text-align:left;zoom:1}
 .cke_sc_def dl:after {display:block;visibility:hidden;clear:both;content:""}
-.cke_sc_def dt, .cke_sc_def dd {float:left;margin:0;padding:5px 0;border-bottom:1px solid .e9e9e9}
+.cke_sc_def dt, .cke_sc_def dd {float:left;margin:0;padding:5px 0;border-bottom:1px solid #e9e9e9}
 .cke_sc_def dt {width:20%;font-weight:bold}
 .cke_sc_def dd {width:30%}