rainbow Gradient

background-image: radial-gradient(
    circle 511px at 48.7% 50.5%,
    rgba(253,0,0,1) 0%, rgba(253,89,0,1) 11%, rgba(253,215,0,1) 22.2%, rgba(87,253,0,1) 32.5%, rgba(0,253,143,1) 44.2%, rgba(0,243,253,1) 55.4%, rgba(0,96,253,1) 65.5%, rgba(35,0,253,1) 74.3%, rgba(140,0,253,1) 82.6%, rgba(205,85,247,1) 91.2%, rgba(247,85,212,1) 97%, rgba(247,85,85,1) 100.2%
);