Board Thread:Support Requests - Designing Your Wikia/@comment-28122555-20140817135015/@comment-28122555-20140823185658

As Fandyllic posted :)

I put it in http://enteryourwikiaurlhere/wiki/Special:MyPage/wikia.css and when I go to the page I wrote down in MyPage/wikia.css.

You will need to bypass your browser's cache and wait a bit before though.