Board Thread:Support Requests - Designing Your Wiki/@comment-33099533-20180703070540/@comment-9605025-20180703102507

Is there anything in particular you need help doing? Your question, intentional or not, is very vague.

The CSS "feature" on the Admin Dashboard is just a shortcut to the page MediaWiki:Wikia.css. It is one of several system messages used to customize the CSS applied to the contents of a specific wiki. For general information on how to use these system messages, see Help:Community_CSS_and_JS. You can find a list of the different CSS system messages currently in use here. There are other CSS system messages but they are no longer in use due to changes in Wikia's core MediaWiki installation. You edit these pages by clicking the edit button at the top right of the page; just as you would any other page. With regards to content, you treat them as if they are a typical stylesheet. If you need help learning how to use CSS, I suggest you check out w3schools.com. There is simply too much to CSS to explain in a forum like this.