SOURCE

<!-- 去年码了个表，   给大家看看 -->

<ul id="clock">
  <li class="numbers"><span>1</span></li>
  <li class="numbers"><span>2</span></li>
  <li class="numbers"><span>3</span></li>
  <li class="numbers"><span>4</span></li>
  <li class="numbers"><span>5</span></li>
  <li class="numbers"><span>6</span></li>
  <li class="numbers"><span>7</span></li>
  <li class="numbers"><span>8</span></li>
  <li class="numbers"><span>9</span></li>
  <li class="numbers"><span>10</span></li>
  <li class="numbers"><span>11</span></li>
  <li class="numbers"><span>12</span></li>
  <li id="hour"></li>
  <li id="minute"></li>
  <li id="second"></li>
</ul>

<p>  去年码了个表，   给大家看看 ..</p>

@import url(https://fonts.googleapis.com/css?family=Josefin+Sans:400,300);
html {
  height: 100%;
}

body {
  background: linear-gradient(to bottom, #f4f4f4 0%, #c7c7c7 100%);
  font-family: 'Josefin Sans', sans-serif;
}

p {
  max-width: 500px;
  margin: 0 auto;
  text-align: center;
  font-size: 24px;
  font-weight: 300;
  line-height: 1.2;
  color: #777;
}

#clock {
  width: 280px;
  height: 280px;
  background: rgba(255, 255, 255, .5);
  border: 18px solid #f8f8f8;
  border-radius: 50%;
  margin: 2% auto 60px;
  position: relative;
  box-shadow: inset 0 5px 25px rgba(0, 0, 0, .05);
}

#clock:before {
  content: '';
  background: linear-gradient(135deg, rgba(255,255,255,1) 0%,rgba(255,255,255,0.66) 16%,rgba(255,255,255,0.31) 32%,rgba(255,255,255,0.69) 44%,rgba(255,255,255,0) 52%,rgba(255,255,255,0.33) 70%,rgba(255,255,255,0) 86%,rgba(255,255,255,1) 100%);
  position: absolute;
  width: 280px;
  height: 280px;
  left: -18px;
  top: -10px;
  border: 18px solid #CCCCCC;
  border-radius: 50%;
  z-index: -2;
  box-shadow: 0 12px 15px rgba(0, 0, 0, .15), 0 1px 9px rgba(0, 0, 0, .15), inset 0 5px 25px rgba(0, 0, 0, .15), inset 0 3px 3px rgba(0, 0, 0, 0.16);
}

#clock:after {
  content: '';
  width: 18px;
  height: 18px;
  background: #fff;
  position: absolute;
  border-radius: 50%;
  left: calc(50% - 9px);
  top: calc(50% - 9px);
  box-shadow: 0 2px 4px rgba(0, 0, 0, .15);
}

#clock li {
  list-style-type: none;
  position: absolute;
}

.numbers {
  position: absolute;
  width: 90%;
  height: 90%;
  padding: 5%;
  text-align: center;
}

.numbers span {
  display: block;
  color: #fff;
  font-size: 38px;
  text-shadow: 0 5px 18px rgba(0, 0, 0, .15), 0 2px 3px rgba(0, 0, 0, .2);
}

.numbers:nth-child(1) {
  transform: rotate(30deg);
}

.numbers:nth-child(1) span {
  transform: rotate(-30deg);
}

.numbers:nth-child(2) {
  transform: rotate(60deg);
}

.numbers:nth-child(2) span {
  transform: rotate(-60deg);
}

.numbers:nth-child(3) {
  transform: rotate(90deg);
}

.numbers:nth-child(3) span {
  transform: rotate(-90deg);
}

.numbers:nth-child(4) {
  transform: rotate(120deg);
}

.numbers:nth-child(4) span {
  transform: rotate(-120deg);
}

.numbers:nth-child(5) {
  transform: rotate(150deg);
}

.numbers:nth-child(5) span {
  transform: rotate(-150deg);
}

.numbers:nth-child(6) {
  transform: rotate(180deg);
}

.numbers:nth-child(6) span {
  transform: rotate(-180deg);
}

.numbers:nth-child(7) {
  transform: rotate(210deg);
}

.numbers:nth-child(7) span {
  transform: rotate(-210deg);
}

.numbers:nth-child(8) {
  transform: rotate(240deg);
}

.numbers:nth-child(8) span {
  transform: rotate(-2400deg);
}

.numbers:nth-child(9) {
  transform: rotate(270deg);
}

.numbers:nth-child(9) span {
  transform: rotate(-270deg);
}

.numbers:nth-child(10) {
  transform: rotate(300deg);
}

.numbers:nth-child(10) span {
  transform: rotate(-300deg);
}

.numbers:nth-child(11) {
  transform: rotate(330deg);
}

.numbers:nth-child(11) span {
  transform: rotate(-330deg);
}

#second {
  width: 100%;
  height: 100%;
  animation: sec 60s steps(60, end) infinite;
}

#second:after {
  content: '';
  width: 4px;
  height: 87px;
  border-radius: 2px;
  background: #edadad;
  position: absolute;
  left: calc(50% - 2px);
  top: 50%;
  box-shadow: 1px 2px 3px rgba(0, 0, 0, .15);
}

#minute {
  width: 100%;
  height: 100%;
  animation: sec 3600s steps(60, end) infinite;
  transform: rotate(-120deg);
}

#minute:after {
  content: '';
  width: 8px;
  height: 79px;
  border-radius: 4px 4px 2px 2px;
  background: white;
  position: absolute;
  left: calc(50% - 4px);
  top: 50%;
  box-shadow: -1px 0 5px rgba(0, 0, 0, .15);
}

#hour {
  width: 100%;
  height: 100%;
  transform: rotate(120deg);
}

#hour:after {
  content: '';
  width: 12px;
  height: 65px;
  border-radius: 6px 6px 3px 3px;
  background: white;
  position: absolute;
  left: calc(50% - 4px);
  top: 50%;
  box-shadow: 1px 0 4px rgba(0, 0, 0, .15);
}

@keyframes sec {
  to {
    transform: rotate(360deg);
  }
}