:root {
  --base03: #002b36;
  --base0: #839496;
}

body {
  background-color: var(--base03);
  color: var(--base0);
}

.centered {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}

h1 {
  text-align: center;
  font-family: "Courier New", Courier, monospace;
  animation: spin 60s linear infinite;
}

@keyframes spin {
  100% {
    transform: rotate(360deg);
  }
}