@keyframes shine{0%{transform:translateX(-100%) skewX(-20deg);opacity:0}50%{opacity:.5}to{transform:translateX(150%) skewX(-20deg);opacity:0}}.shine-overlay:before{content:"";position:absolute;top:0;left:-75%;height:100%;width:50%;background:linear-gradient(120deg,rgba(255,255,255,0),rgba(255,255,255,.4) 50%,rgba(255,255,255,0));animation:shine 4s ease-in-out infinite;animation-delay:1s}