.js-ripple{overflow:hidden;position:relative}span.ripple{-webkit-animation:ripple .3s linear;animation:ripple .3s linear;background-color:rgba(0,0,0,.3);border-radius:50%;position:absolute;-webkit-transform:scale(0);transform:scale(0)}@-webkit-keyframes ripple{to{opacity:0;-webkit-transform:scale(4);transform:scale(4)}}@keyframes ripple{to{opacity:0;-webkit-transform:scale(4);transform:scale(4)}}