html, body {
  width: 100%;
  height: 100%;
  background-color: #DDD; }

.content {
  font-family: 'Share Tech Mono';
  position: absolute;
  top: 40%;
  left: 50%;
  margin: 0;
  padding: 0;
  transform: translateX(-50%) translateY(-50%);
  text-align: center; }

h1 {
  font-size: 50px; }

#clock {
  padding: 0;
  margin-top: 35px; }
  #clock li {
    display: inline-block;
    padding: 20px 20px;
    background-color: #222;
    line-height: initial;
    color: #DDD;
    font-size: 80px;
    font-weight: bold;
    margin: 5px;
    border-radius: 3px;
    border: 1px solid #444;
    box-shadow: 0 -3px 0 -1px #222, 0 -4px 0 -1px #444, 0 -7px 0 -2px #222, 0 3px 0 -1px #222, 0 4px 0 -1px #444, 0 7px 0 -2px #222, 0 3px 10px rgba(0, 0, 0, 0.6);
    position: relative;
    }
    #clock li:before {
      content: attr(data-text);
      background-color: #222;
      line-height: 135px;
      color: #DDD;
      font-size: 80px;
      font-weight: bold;
      margin-top: -2px;
      height: 50%;
      border-radius: 3px;
      border-bottom: 1px solid #111;
      box-shadow: 0 1px 1px -1px #555;
      background-image: -webkit-linear-gradient(top, rgba(200, 200, 200, 0.05) 0%, transparent 100%);
      overflow: hidden;
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      display: block;}
    #clock li:nth-child(even) {
      margin-right: 30px; }
    #clock li:last-child {
      margin-right: 0; }