.footer{background:linear-gradient(135deg,rgb(229,228,226),rgba(0,171,102,.2),rgba(168,40,248,.1),rgba(0,171,102,.2),rgb(229,228,226));background-size:400% 400%}.dark .footer,.footer{animation:bgGrad 10s ease infinite}.dark .footer{background:linear-gradient(135deg,black,rgba(65,105,225,.15),rgba(0,255,241,.15),rgba(65,105,225,.15),black);background-size:200% 400%}@keyframes bgGrad{0%,to{background-position:0 50%}50%{background-position:100% 50%}}