* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html, body {
  width: 100%;
  height: 100%;
  overflow: hidden;
}

.screen {
  position: relative;
  width: 100%;
  height: 100%;
  background-image: url('background.png');
  background-size: 100% 100%;
  background-repeat: no-repeat;
}

.clock {
  position: absolute;
  top: 3.5rem;
  right: 5rem;
  text-align: right;
}

.time {
  display: block;
  font-size: 5rem;
  color: #2d7e78;
  line-height: 1;
}

.date {
  display: block;
  margin-top: 0.25rem;
  font-size: 1.6rem;
  color: #2d7e78;
}