:doodle { @grid: 1x5 / 100vmin; } @place-cell: center; width: @rand(45vmin, 75vmin); height: @rand(45vmin, 75vmin); transform: translate(@rand(-120%, 120%), @rand(-80%, 80%)) scale(@rand(.8, 2.8)) skew(@rand(45deg)); clip-path: polygon( @r(0, 30%) @r(0, 50%), @r(30%, 60%) @r(0%, 30%), @r(60%, 100%) @r(0%, 50%), @r(60%, 100%) @r(50%, 100%), @r(30%, 60%) @r(60%, 100%), @r(0, 30%) @r(60%, 100%) ); background: @pick(#f44336, #9c27b0, #673ab7, #3f51b5, #60569e, #e6437d, #ebbf4d, #00bcd4, #03a9f4, #2196f3, #009688, #5ee463, #f8e645, #ffc107, #ff5722, #43f8bf, #e136eb, #32ed39); opacity: @rand(.5, .9); position: relative; top: @rand(-80%, 80%); left: @rand(0%, 80%); animation: colorChange @rand(6.1s, 26.1s) infinite @rand(-.5s, -2.5s) linear alternate; @keyframes colorChange { 100% { left: 0; top: 0; filter: hue-rotate(360deg); } }