Board Thread:Support Requests - Designing Your Wiki/@comment-3269579-20130720140256

I'm trying to edit the look of the Talk button beside each page's title; most particularly, I'd like to make the font a little smaller to match other buttons, notably the Edit button next to it. Have found the relevant page from Special:AllMessages — MediaWiki:Oasis-page-header-talk — but when I tried adding span-style type instructions the code showed up verbatim on the button. I think I need a way to do it using MediaWiki:Wikia.css — can anyone help out please? 