.back{transform-style:preserve-3d;border-radius:4px;justify-content:center;align-items:center;padding:1px;display:flex;overflow:hidden}.back:hover:before{content:"";background:linear-gradient(90deg,transparent,var(--vp-c-brand),transparent);width:120px;height:500%;animation:5s linear infinite rotation;display:block;position:absolute}.back:hover:after{content:"";background-color:#fff;border-radius:4px;width:calc(100% - 2px);height:calc(100% - 2px);position:absolute;top:1px;left:1px}@keyframes rotation{0%{transform:rotate(0)}0%{transform:rotate(360deg)}}