.border-rainbow{position:relative;border:2px solid transparent;background:#fff;background-clip:padding-box}.border-rainbow:before{content:"";position:absolute;top:-2px;left:-2px;right:-2px;bottom:-2px;background:linear-gradient(to right,#ef4444,#f59e0b,#eab308,#22c55e,#3b82f6,#8b5cf6);border-radius:1rem;z-index:-1}