body{background-image:radial-gradient(#ff00004d,#f000 40vw),radial-gradient(#0080004d,#00800000 40vw),radial-gradient(#0000ff4d,#00f0 40vw),radial-gradient(#ffff004d,#ff00 40vw),radial-gradient(#ff00004d,#f000 40vw);background-position:-40vw 14rem,50% 10rem,60vw 14rem,-10vw calc(14rem + 20vw),30vw calc(14rem + 20vw);background-repeat:no-repeat}