MediaWiki:Common.css

/* CSS placed here will be applied to all skins */ /* Custom username colors */ @keyframes RainbowName{ from { -webkit-filter:hue-rotate(15deg); filter:hue-rotate(15deg); } to { -webkit-filter:hue-rotate(360deg); filter:hue-rotate(360deg); } } a[href$="/wiki/User:LevelUP99"], a[href$=":LevelUP99"], a[href$="/LevelUP99"] { animation: RainbowName 3s infinite; color: red; font-weight: bold !important; }