Board Thread:Support Requests - Designing Your Wiki/@comment-24154960-20131111180412/@comment-4519283-20131111193622

Your CSS code looks good, but the tag doesn't exist and has never existed (as far as I know). I think you're looking for the style tag.

Furthermore, it sounds to me that you're putting this code directly in the template page. This is intentionally blocked by Wikia (otherwise people could simply put malicious code into the page). You should put your CSS code (minus the tags) into one of the pages listed here. It sounds like you should put it in MediaWiki:Wikia.css on your wiki (put it in MediaWiki:Monobook.css if you want Monobook users to see this code, but I wouldn't recommend it because the Monobook skin is much different than the default Wikia skin). Be patient if the code doesn't show up immediately, try purging (add ?action=purge to the end of the url, or &action=purge if there is already a ?) or just wait, it could take up to a day.