Board Thread:Support Requests - Getting Technical/@comment-33878615-20160706184225/@comment-1757994-20160707024645

If you mean the standard WikiMedia editor, which Wikia calls the Source editor, the CSS selector is.

If you mean the Rich Text Editor, which Wikia calls the Classic editor, in source mode, the CSS selector is.

A link to the wiki where the titles are all uppercase would help, but it's probably using "text-transform: uppercase;" on, so you'd have to change it back to "text-transform: none;" in your personal CSS.