.footer-gradient:before{content:"";position:absolute;top:-50%;left:-50%;width:200%;height:200%;background:radial-gradient(circle,rgba(123,31,162,.1) 0,rgba(32,201,151,.1) 25%,rgba(242,87,87,.1) 50%,rgba(247,143,43,.1) 75%,rgba(123,31,162,.1) 100%);animation:rotate 20s linear infinite;z-index:0}@keyframes rotate{0%{transform:rotate(0deg)}to{transform:rotate(1turn)}}