.shine{position:relative;overflow:hidden}.shine:before{content:"";background:linear-gradient(90deg,#0000,#fff6,#0000);width:60%;height:200%;animation:4s infinite shine;position:absolute;top:-50%;left:-100%;transform:rotate(40deg)}@keyframes shine{0%{left:-100%}30%{left:200%}to{left:200%}}