MediaWiki:Wikia.css

.animated-hover:after { position: absolute; top: 0; content:  ; left: 0; width: 100%; height: 100%; background: linear-gradient(to right, #f9bdbd, #f9debd, #f2f9bd, #c1f9bd, #bdf6f9, #bdc1f9, #f8bdf9, #f9bdbd, #f9debd, #f2f9bd); animation: colorscroll 3s linear infinite; background-size: 500% 100%; transition: opacity 0.5s ease-out; z-index: 2; opacity: 0; }

.animated:hover { background: #4682b4; /* or any other color */ }