:doodle { @grid: 10 / 100vmax; background: midnightblue; } @shape: cross; background: hsla( calc(300 - @index() * 5), 60%, 70%, @rand(.8) ); transform: scale(@rand(.2, 1.2)) translate( @rand(-50%, 50%), @rand(-20%, 20%) );

CSS-Doodle Background