/* utility classes */
.u-container-padding {
	padding-left: 30px;
	padding-right: 30px;
}
.u-left {
	float: left;
}
.u-right {
	float: right;
}
.u-ripple {
  position: relative;
  overflow: hidden;
  transform: translate3d(0, 0, 0);
}
.u-ripple:after {
  content: "";
  display: block;
  position: absolute;
  width: 100%;
  height: 100%;
  top: 0;
  left: 0;
  pointer-events: none;
  background-image: radial-gradient(circle, #000 10%, transparent 10.01%);
  background-repeat: no-repeat;
  background-position: 50%;
  transform: scale(10, 10);
  opacity: 0;
  transition: transform .2s, opacity .5s;
}
.u-ripple:active:after {
  transform: scale(0, 0);
  opacity: .2;
  transition: 0s;
}