Board Thread:Support Requests - Designing Your Wikia/@comment-25127231-20140320192219/@comment-8865495-20140404224941

If you're skilled enough, it is possible to do all this "Theme Designer" stuff via CSS. Also, you should try purging the page after saving (though it usually doesn't require it using Theme Designer).

Purging the Page

Windows—Control+F5

Mac—Command+Shift+R