Board Thread:Support Requests - Getting Technical/@comment-4850419-20130826221410

I'm still learning CSS, and I was wondering if there was a place I could go to test changes to Common.css on my Wiki. Right now, I'm just making many incremental changes to it to test things. This clutters the history and takes time. Anybody know of a "CSS Sandbox" I can use that works much like Wikia's CSS system?  