.rainbow-bg{position:absolute;top:0;left:0;right:0;bottom:0;background:linear-gradient(90deg,#ffa460,#ff81a3 12.5%,#e88dff 25%,#8da2ff 37.5%,#31e5ef 50%,#72f22f 62.5%,#f4f405 75%,#ffa460 87.5%,#ff81a3);background-size:800% 100%;animation:rainbowGradient 40s linear infinite;clip-path:polygon(0 0,0 100%,100% 0)}@keyframes rainbowGradient{0%{background-position:0 50%}to{background-position:100% 50%}}