diff --git a/demos/autocomplete/categories.html b/demos/autocomplete/categories.html
index cd4c2c05b0..524f7b67a0 100644
--- a/demos/autocomplete/categories.html
+++ b/demos/autocomplete/categories.html
@@ -10,7 +10,10 @@
 	<script type="text/javascript" src="../../ui/jquery.ui.autocomplete.js"></script>
 	<link type="text/css" href="../demos.css" rel="stylesheet" />
 	<style type="text/css">
-	
+	.ui-autocomplete-category {
+		padding:.2em .4em;
+		line-height:1.5;
+	}
 	</style>
 	<script type="text/javascript">
 	$.each({
@@ -57,7 +60,7 @@
 				currentCategory = "";
 			$.each( items, function( index, item ) {
 				if ( item.category != currentCategory ) {
-					ul.append( "<li class='category'>" + item.category + "</li>" );
+					ul.append( "<li class='ui-widget-header ui-autocomplete-category'>" + item.category + "</li>" );
 					currentCategory = item.category;
 				}
 				self._renderItem( ul, item );