Board Thread:Support Requests - Designing Your Wiki/@comment-5095122-20130502224432/@comment-5193807-20130504125442

Elecbullet wrote: You're looking at it :p

Mediawiki is the software that runs this wiki, and every single other wiki on Wikia. So I'm pretty sure mw-collapsible should work OK on your wiki!

It will unless if you add into wikia.css: .mw-collapsible, collapsible { content: none; };

But it should work