Board Thread:Support Requests - Designing Your Wiki/@comment-24203080-20170302072944/@comment-9605025-20170303065043

Andrey Andrey wrote: Ah damn, it seems to not work on your wiki.

Try MediaWiki:Wikia.css instead. Yes, from Moltenia's user page on that wiki, the wiki was created prior to July 2014. According to the CSS help page, this means that MediaWiki:Common.css is loaded for the MonoBook skin only. However, Moltenia, you could send a request to have the behavior updated so that MediaWiki:Common.css applies to both MonoBook and Oasis.