counter.css

.counter-digit {
  width: 22px;
  display: inline-block;
  position: relative;
}

.flip .counter-top {
  -webkit-transform: rotateX(180deg);
}

.flip .counter-bottom {
  background: #3c3c3c;
}

.counter-top,
.counter-bottom,
.counter-next {
  height: 10px;
  overflow: hidden;
  position: absolute;
  display: inline-block;
  font-size: 16px;
  padding: 5px;
  color: white;
}

.counter-next,
.counter-top {
  padding-bottom: 0;
  -webkit-border-radius: 3px 3px 0 0;
  background: -webkit-linear-gradient(#3c3c3c, #636363);
  -webkit-box-shadow: 0 0 0 1px #636363;
}

.counter-next {
  background: #636363;
}

.counter-top {
  -webkit-transform-origin: bottom;
  -webkit-transition: -webkit-transform 200ms ease-out;
}

.counter-bottom {
  padding-top: 0;
  -webkit-border-radius: 0 0 3px 3px;
  background: blue;
  margin-top: 15px;
  background: -webkit-linear-gradient(#636363, #3c3c3c);
  border-bottom: 1px solid #7b7b7b;
  -webkit-box-shadow: 0 0 0 1px #636363, 0 2px 5px #888;
  top: 0;
  left: 0;
}

.counter-bottom span {
  position: relative;
  top: -10px;
}