.rainbow{cursor:pointer;text-align:center;background-color:#171717;border-radius:8px;width:270px;padding:12px;position:relative}.rainbow:before,.rainbow:after{content:"";z-index:-1;background:linear-gradient(10deg,#ec4899,#8b5cf6,#32965d,#ffbe0b,#880d1e) 0 0/400%;border-radius:8px;width:calc(100% + 4px);height:calc(100% + 4px);animation:2s linear infinite rainbowAnimation;position:absolute;top:-2px;left:-2px}.rainbow:after{filter:blur(10px)}@keyframes rainbowAnimation{0%{background-position:0 0}50%{background-position:100% 0}to{background-position:0 0}}