mdb-ui-kit/css-compiled/ripples.min.css

.withripple{position:relative}.ripple-wrapper{position:absolute;top:0;left:0;z-index:1;width:100%;height:100%;overflow:hidden;border-radius:2px}.ripple{position:absolute;width:20px;height:20px;margin-left:-10px;margin-top:-10px;border-radius:100%;background-color:rgba(0,0,0,.05);-webkit-transform:scale(1);-ms-transform:scale(1);transform:scale(1);-webkit-transform-origin:50%;-ms-transform-origin:50%;transform-origin:50%;opacity:0;pointer-events:none}.ripple.ripple-on{-webkit-transition:opacity .15s ease-in 0s,-webkit-transform .5s cubic-bezier(0.4,0,.2,1) .1s;transition:opacity .15s ease-in 0s,transform .5s cubic-bezier(0.4,0,.2,1) .1s;opacity:1}.ripple.ripple-out{-webkit-transition:opacity .1s linear 0s!important;transition:opacity .1s linear 0s!important;opacity:0}