body{background-color:#f4f3f3}body.animated-background{position:relative;overflow:hidden;height:100vh}body.animated-background:before{content:"";background:radial-gradient(circle at center,#70D6FF,#80b1ff);position:absolute;inset:0;z-index:-1;animation:hue-rotation 80s infinite}body.animated-background:after{content:"";background-color:#0000004d;position:absolute;inset:0;z-index:-1}@keyframes hue-rotation{0%,to{filter:hue-rotate(0deg)}50%{filter:hue-rotate(360deg)}}