.btn-shine{position:relative;overflow:hidden}.btn-shine:after{content:"";position:absolute;top:0;left:-100%;width:50%;height:100%;background:linear-gradient(to right,#fff0,#ffffff4d,#fff0);transform:skew(-25deg);transition:none}.btn-shine:hover:after{animation:shine .85s ease-in-out}@keyframes shine{to{left:125%}}