Board Thread:Support Requests - Designing Your Wiki/@comment-31714129-20170607193518/@comment-168424-20170609223836

Try changing to: .WikiaArticle { font-family: Perpetua; font-size:16pt !important; }

There might be some CSS downstream overriding the custom CSS. I inspected the CSS on a page and the 16pt was getting set and then overriden by 14px.

Also, it's good to test stuff at Special:MyPage/wikia.css before putting it in wiki-wide CSS (also make sure the wiki-wide CSS won't override what you're testing).