html {
      background:#018DED url(https://static.pexels.com/photos/91228/pexels-photo-91228.jpeg);
      background-size:cover;
      font-family:'helvetica neue';
      text-align: center;
      font-size: 10px;
    }
    body {
      margin: 0;
      font-size: 2rem;
      display:flex;
      flex:1;
      min-height: 100vh;
      align-items: center;
    }
    .clock {
      width: 30rem;
      height: 30rem;
      border:15px solid white;
      border-radius:30%;
      margin:50px auto;
      position: relative;
      padding:2rem;
      box-shadow:
        0 0 0 4px rgba(0,0,0,0.1),
        inset 0 0 0 5px #EFEFEF,
        0 0 10px rgba(0,0,0,0.7);
    }
    .clock-face {
      position: relative;
      width: 100%;
      height: 100%;
      transform: translateY(-3px);
    }
    .hand {
      width:50%;
      height:6px;
      background:black;
      position: absolute;
      top:50%;
      transform-origin: 100%;
      transform: rotate(90deg);
      transition: all 0.05s;
      transition-timing-function: cubic-bezier(0.5, 1.7, 0.58, 1);
      box-shadow: 0 1px 10px silver;
    }