@property --gradient-angle{syntax:"<angle>";inherits:false;initial-value:0deg}@keyframes rotate-gradient{to{--gradient-angle:360deg}}.rainbow-border-container{background:conic-gradient(from var(--gradient-angle),red,#ff0,#0f0,#fff,#00f,#f0f,red);animation:1.6s linear infinite rotate-gradient;position:relative}.rainbow-border-container:before{content:"";background:inherit;border-radius:inherit;z-index:-1;filter:blur(6px);position:absolute;top:0;bottom:0;left:0;right:0;transform:translateZ(0)}