@keyframes borderRotate{to{--angle:420deg}}@property --angle{syntax:"<angle>";initial-value:90deg;inherits:true}.border-anim{--d:3500ms;--angle:90deg;--c1:rgba(255,255,255,0.5);--c2:rgba(255,255,255,0.1);position:absolute;inset:0;border-radius:inherit;padding:2px;background:conic-gradient(from var(--angle),var(--c2),var(--c1) 36deg,var(--c1) 54deg,var(--c2) 90deg);-webkit-mask:linear-gradient(#fff 0 0) content-box,linear-gradient(#fff 0 0);-webkit-mask-composite:xor;mask-composite:exclude;animation:borderRotate var(--d) linear infinite forwards}