.container {
  min-height: 100vh;
  max-height: 100vh;
  position: relative;
}

.center {
  min-width: 100vw;
  max-width: 100vw;
  margin: 0;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  text-align: center;
  font-family: 'Courier New';
  font-size: 20vw;
}