diff --git a/web/ons-demo/css/layout.default.css b/web/ons-demo/css/layout.default.css
index 5e1f1ce..cfca8c5 100644
--- a/web/ons-demo/css/layout.default.css
+++ b/web/ons-demo/css/layout.default.css
@@ -4,10 +4,24 @@
 
 body {
 	display: -webkit-box;
-	-webkit-box-orient: vertical;
 	-webkit-user-select: none;
 }
 
+#background, #background-image {
+	width: 100%;
+	height: 100%;
+}
+
+#contents {
+	width: 100%;
+	height: 100%;
+	display: -webkit-box;
+	-webkit-box-orient: vertical;
+	position: absolute;
+	top: 0px;
+	left: 0px;
+}
+
 #columns {
 	display: -webkit-box;
 	-webkit-box-flex: 1.0;