:root{--pattern-color: #505050}body{background-color:#e5e5f7;opacity:1;background-image:repeating-linear-gradient(45deg,var(--pattern-color) 25%,transparent 25%,transparent 75%,var(--pattern-color) 75%,var(--pattern-color)),repeating-linear-gradient(45deg,var(--pattern-color) 25%,#e5e5f7 25%,#e5e5f7 75%,var(--pattern-color) 75%,var(--pattern-color));background-position:0 0,20px 20px;background-size:40px 40px}