MediaWiki:Activity.css/Activity 13.css

body.page-Special_WikiActivity { background-attachment: fixed; background-position: -50% -50% !important; background-repeat: no-repeat !important; background-size: 120% !important; background: url("http://vignette2.wikia.nocookie.net/sonako/images/5/5c/Activity_13_Background.jpg/revision/latest?cb=20151212092439"); }