JS Button Ripple Effect

ripple.css

.button {
  background: #000000;
  color: #ffffff;
  line-height: 32px;
  font-size: 16px;
  max-width: 100px;
  width: 100%;
  text-align: center;
  cursor: pointer;
  position: relative;
  overflow: hidden;
  -webkit-touch-callout: none;
  -webkit-user-select: none;
  -khtml-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  user-select: none;
}
.ripple {
  position: absolute;
  top: 0;
  left: 0;
  display: block;
  width: 10px;
  height: 10px;
  margin-left: -5px;
  margin-top: -5px;
  background: #ffffff;
  opacity: 0;
  border-radius: 5px;
}
.ripple--animate {
  -webkit-transition: -webkit-transform 300ms ease-in;
  transition: transform 300ms ease-in;
  -webkit-transform: scale(15);
  -ms-transform: scale(15);
  transform: scale(15);
  opacity: 0.2;
  pointer-events: none;
}

ripple.html

<div class="button">Foo
  <div class="ripple"></div>
</div>

ripple.js

// For more reliable event support detection: http://stackoverflow.com/questions/16439161/how-to-support-transitionend-without-browser-sniffing

$('.button').on('mousedown', function (e) {
    
    // Click coordinates.
    var css = {
        top: e.clientY,
        left: e.clientX
    };

    $('.ripple', this).css(css).addClass('ripple--animate');

    return true;
});

$('.ripple').on('transitionend', function () {
    $(this).removeClass('ripple--animate');
});