Board Thread:Support Requests - Designing Your Wiki/@comment-6327978-20130908040646/@comment-4018164-20130908071038

MediaWiki:Wt shoutbox initial message is not related to the chat- it's probably related to the Monaco chatbox feature. You cna find some more chat messages [ here].
 * 1) MediaWiki:Chat-user-joined and MediaWiki:Chat-user-parted are what you need. Don't use CSS for that. Although the CSS content property can handle this, CSS is just not an ideal way to insert content.
 * 2) In MediaWiki:Chat-welcome-message You can add the img element like this: Welcome to the $1 chat