Board Thread:Support Requests - Getting Technical/@comment-31440879-20171126162503

I know that individual pages can be given a custom background by adding code to MediaWiki:Wikia.css. An example (using the RollerCoaster Tycoon Wiki) would be: body.page-Vanilla_Hills{ background: #000000 url(https://vignette.wikia.nocookie.net/rct/images/8/8f/Vanilla_Hills_Overview.png/revision/latest?cb=20100119020028) 0 0 no-repeat; background-position: center top; background-repeat: no-repeat; background-attachment: fixed; background-size:cover; } However, for the wiki, it is not working. So, my two questions are:
 * 1) How do the,  , etc. lines affect this?
 * 2) What are the other settings in a wiki that can affect this? 