@import url('https://fonts.googleapis.com/css2?family=Orbitron:wght@400&display=swap');
*{
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
html,body{
  height: 100%;
}
body{
  display: grid;
  place-items: center;
  background: #131419;
}
.clock{
  background: #131419;
  height: 120px;
  
  line-height: 120px;
  text-align: center;
  padding: 0 30px;
  box-shadow: -3px -3px 7px rgba(255,255,255,0.05),
               3px 3px 5px rgba(0,0,0,0.5);
}
.clock .display{
  font-size: 60px;
  color: cyan;
  letter-spacing: 5px;
  font-family: 'Orbitron', sans-serif;
}