.wave{border-radius:43%;bottom:0;height:40vw;left:0;margin:auto;opacity:.4;position:absolute;right:0;top:0;width:40vw}.wave.-one{animation:drift 12s linear infinite;background:radial-gradient(circle,#fff 65%,#7fb927);border:1px solid #7fb927}.wave.-three{animation:drift 20s linear infinite}.wave.-three,.wave.-two{background:radial-gradient(circle,#fff 65%,#4e74f9);border:1px solid #4e74f9}.wave.-two{animation:drift 28s linear infinite;opacity:.5}@keyframes drift{0%{transform:rotate(0);transform:rotate(1turn)}}