Board Thread:Support Requests - Designing Your Wiki/@comment-26418565-20180417173455/@comment-31863794-20180418024239

The issue is that you weren't supposed to edit the page, I linked it so you could read the instructions on it. Depending on your device and browser, the keys for clearing your cache are different. Assuming you're using either IE, Edge, Chrome, or Firefox on a computer or laptop, just press ctrl and f5 on the MediaWiki:Wikia.css page to clear your cache.