body, html {
  margin:0;
  padding:0;
  font-family: monospace;
  height: 100%;
  width: 100%;
  background-color: #000;
}


.time {
  font-size: 80px;
  top: 50%;
  left: 50%;
  position: absolute;
  transform: translate(-50%,-50%);
  color: white;
  mix-blend-mode: difference;
}