Thread:Ursuul/@comment-24687156-20170526130525/@comment-28083312-20170526150611

Depends on where you place the CSS. If you placed it in, say, Special:Mypage/wikia.css, then it’d be personal. If you put it in MediaWiki:Wikia.css however, then it would affect the Oasis Skin on the entire Wiki for every single person. You need admin rights to edit MediaWiki of course though.