.img-placeholder{width:100%;height:100%;border-radius:4px;background:#eee;position:relative;overflow:hidden}.img-placeholder:after{content:"";position:absolute;top:0;left:0;width:150%;height:100%;background:linear-gradient(90deg,transparent,rgba(255,255,255,.9),transparent);transform:translate(-100%);animation:shimmer-move 1.5s infinite}@keyframes shimmer-move{0%{transform:translate(-100%)}to{transform:translate(100%)}}