Styling the <body>
body { background: linear-gradient(180deg, rgba(255,128,0,0.033), 3em, rgba(255,216,0,0) 33em), linear-gradient( 90deg, hsla(34deg,0%,96%,0.98) 5%, 10%, hsla(34deg,38%,99%,0.95) 25%, 33%, hsla(34deg,38%,99%,1) 50%, 67%, hsla(34deg,38%,99%,0.975) 75%, 90%, hsla(34deg,0%,96%,0.98) 95% ) 0 0 / 100% 100% no-repeat, linear-gradient(179deg, hsla(34deg,38%,99%,1) 11em, hsla(34deg,38%,99%,0) 13em), linear-gradient(0deg, hsla(34deg,38%,99%,1) 23em, hsla(34deg,38%,99%,0) 42em), url(i/hamonshu/bg-waves.png) 0 0, url(i/hamonshu/bg-waves.png) 250px -50px, hsla(34deg,38%,99%,1); }