:root{--checkerColor:#eee}.bg-checker{background-image:linear-gradient(45deg,var(--checkerColor) 25%,transparent 0),linear-gradient(-45deg,var(--checkerColor) 25%,transparent 0),linear-gradient(45deg,transparent 75%,var(--checkerColor) 0),linear-gradient(-45deg,transparent 75%,var(--checkerColor) 0);background-size:20px 20px;background-position:0 0,0 10px,10px -10px,-10px 0}