Board Thread:Support Requests - Designing Your Wikia/@comment-5454372-20140709192949/@comment-856287-20140710020849

Yeah, when you don't have admin rights you can't define @media rules (or pseudo classes for that matter) because they only work in CSS files, not in inline styles on the page. As a non-admin user, you pretty much have to write the CSS yourself, share it with the wiki admins, and then hope they're willing to put the code in place for you.