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:doodle { @grid: 50x1/ 150vmin; perspective: 100vmin; transform-style: preserve-3d; animation: rd 20s linear infinite; will-change: transform; } margin: auto; @size: 20px .5vmin; @random { height: .2vmin; } will-change: transform; transform-style: preserve-3d; background: @p(#2157d6, #3370ff, #0369b8, #3e5bb7); animation: cycle @r(5s, 20s, .1) linear infinite; animation-delay: -@r(.1s, 30s); --tz: 200vmin; --sc: @r(1, 5, .1); transform: rotateY(0) scaleX(var(--sc)) translateZ(var(--tz)); @keyframes cycle { to { transform: rotateY(@p(1turn, -2turn)) scaleX(var(--sc)) translateZ(var(--tz)); } } @keyframes rd { to { transform: rotateZ(@p(-2turn, 2turn)) } }