:doodle { size: 100vmin; perspective: 00px; } clip-path: @shape(star); will-change: transform; background: hsla( calc(320 + @index() * 2), 80%, 60%, @rand(.1, .8) ); animation-timing-function: ease-in; animation-iteration-count: infinite; animation-duration: @rand(5s, 16s, .1); --tz: @rand(10vmax, 80vmax); --rt: @rand(120deg, 220deg); @odd { animation-name: r-odd; transform: rotateY(0) translateZ(var(--tz)); } @even { animation-name: r-even; transform: rotateZ(var(--rt)) rotateY(0) translateZ(var(--tz)); } @keyframes r-odd { to { transform: rotateY(1turn) translateZ(var(--tz)); } } @keyframes r-even { to { transform: rotateZ(var(--rt)) rotateY(1turn) translateZ(var(--tz)); } } bootstrapmb