MediaWiki:Chat.css

body { background: url(https://vignette.wikia.nocookie.net/okamisplace/images/1/16/Chatbg.png); -webkit-background-size: cover; -moz-background-size: cover; -o-background-size: cover; background-size: cover; }

.WikiaPage { background: none !important; }

zoom: 103% } .Rail { background-color: rgba(240, 245, 247, 0.3); border: none; } .Write { background-color: rgba(0, 0, 0, 0); border: none; } .Write .message, .ChatHeader { background-color: rgba(240, 245, 247, 0.5); border: none; }   border: none; }
 * 1) WikiaPage, .Write .img, .Chat, .ChatHeader {

.Chat .you, .chat .continued .you { background: none; }