.checkerboard-pattern{background-color:#fff;background-image:linear-gradient(45deg,#0003 25%,#0000 0),linear-gradient(-45deg,#0003 25%,#0000 0),linear-gradient(45deg,#0000 75%,#0003 0),linear-gradient(-45deg,#0000 75%,#0003 0);background-position:0 0,0 20px,20px -20px,-20px 0;background-size:40px 40px}