User blog comment:Ohmyn0/Making your wiki HTML5 compliant/@comment-1649337-20120706110614

I have noticed MediaWiki:Common.css now applies to Special:Chat too. Could you please undo that change, and make MediaWiki:Chat.css and MediaWiki:Chat.js apply to Special:Chat? A lot of styles and scripts that are added to the chat while they are not made for the chat. This messes up the chat for some wikis, which is likely not what you intended to do. It is quite hard to cancel out all styles defined in the common.css, so please make Chat.css and Chat.js work in the chat instead of common.css. Thanks.