a.whatsapp{position:relative;overflow:hidden}a.whatsapp:after{content:" ";position:absolute;width:10%;height:110%;top:0;left:0;background:hsla(0,0%,100%,.2);transform:rotate(15deg) skew(-.06turn,-15deg) translateY(-5%);z-index:1;animation:whatsapp 2s infinite}@keyframes whatsapp{0%{left:-110%}to{left:110%}}