Make the dismiss option more obvious.

services/web/public/stylesheets/app/editor/feature-onboarding.less

@@ -81,9 +81,11 @@ a.feat-onboard-dismiss {
 	width: 1em;
 	height: 1em;
 	line-height: 1em;
-	font-size: 2em;
+	font-size: 2.5em;
 	color: #FFF;
-	opacity: 0.5;
+	background-color: rgba(0,0,0, .25);
+	opacity: 0.7;
+	border-radius: 0.5em;
 	transition: opacity .15s ease-in-out;
 	
 	&:hover,