@property --star-angle{syntax:"<angle>";initial-value:0deg;inherits:false}.star-border-container{position:relative;width:100%;height:100%;border-radius:20px}.star-border-container:before{content:"";position:absolute;inset:-1px;border-radius:inherit;background:conic-gradient(from var(--star-angle),#0000 0,#0000 50%,var(--star-color) 90%,#0000 100%);animation:star-spin var(--star-speed) linear infinite;z-index:0}.inner-content{position:relative;background:#000;color:#fff;border-radius:20px;z-index:1;height:100%;display:flex;flex-direction:column;border:1px solid #222}@keyframes star-spin{0%{--star-angle:0deg}to{--star-angle:360deg}}