Remove unit after zero

static/css/elegant.css

@@ -109,7 +109,7 @@ http://www.tipue.com/search
     font-family: Baskerville, Garamond, Georgia, "DejaVu Serif", "Times New Roman", Times, Serif;
     font-size: 3em;
     font-weight: normal;
-    margin: 20px 0px 20px 0px;
+    margin: 20px 0 20px 0;
     padding: 5px 5px 15px 5px;
 }
 .tipue_search_content_title