User:HumansCanWinElves/global.css

div { width: 100px; height: 100px; background-color: red; animation-name: example; animation-duration: 4s; } !important

@keyframes example { 0%  {background-color: red;} 25% {background-color: yellow;} 50% {background-color: blue;} 100% {background-color: green;} } !important