The best CSS it's ever been.
Sorry, I don't know how to embed animations via CSS on here yet.
body {
animation: anim-scroll 16s linear infinite;
background: conic-gradient(#FEB3D0 25%, #F2C5D9 0 50%, #F0F2F1 0 75%, #F0DAE6 0) 0 0/100px 100px;
}
@keyframes anim-scroll {
0% { background-position: 0px 0px; }
100% { background-position: -400px -400px; }
}