.sgd-checker{background-image:linear-gradient(45deg,var(--surface-gray) 25%,transparent 25%),linear-gradient(-45deg,var(--surface-gray) 25%,transparent 25%),linear-gradient(45deg,transparent 75%,var(--surface-gray) 75%),linear-gradient(-45deg,transparent 75%,var(--surface-gray) 75%);background-size:8px 8px;background-position:0 0,0 4px,4px -4px,-4px 0}