Board Thread:Support Requests - Getting Technical/@comment-5454372-20140429061912

Title's probably a bit confusing, so please bear with me here:

If a CSS skin has been applied for all users on a wiki by editing Special:CSS, MediaWiki:wikia.css or MediaWiki:Monobook.css, is there any way for a user to cancel the CSS for themselves only?

When I say "cancel", I don't mean by overriding it with a different skin of their own choice -- I mean making the wiki appear as if there's been no edits to Special:CSS (i.e. the default look of a wiki before an admin modifies its look by editing the CSS page). 