Board Thread:Support Requests - Getting Technical/@comment-16811522-20140120221359/@comment-188432-20140203220145

Your question can be taken in several different ways. If you want to change all user names to the colour green, then user:2Actimv is correct. However, this makes everyone's username green, which may not be what you want.

I rather think you mean that we should take your sentence literally: "I'd like to customise my username on the Chats I go to on Wikia."

Okay, so there are two parts to that. First is the "my" bit. To get just your name coloured differently than everyone else's what you have to do is this: .Chat .you .username { color : green }

Second is the "on the Chats I go to on Wikia" bit. That means you want portable CSS. So that means that you've got to put that CSS snippet above at Special:MyPage/global.css. But you have to change it slightly, just to be extra sure that you'll get your green wherever you go. Make it: .Chat .you .username { color : green !important; } That way, you'll definitely override local .css on those chats where local admin have bothered to style the  element — even if they, too, have !important-ed their local colours.

The other way to take it is that you want other people to see that you've changed the colour of your .username. This actually is not possible with your other stipulation of portability. You can make that happen only when you have access to a wiki's local CSS. And that's a good thing. After all, it would be somewhat arrogant for you to rock up on someone else's wiki and have your name styled contrary to their wishes.