/* Center content and style heading */
html,
body {
  height: 100%;
  margin: 0;
}
body {
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue",
    Arial;
  background: #fafafa;
  color: #111;
}
main {
  text-align: center;
}
h1 {
  margin: 0 0 1rem 0;
  font-size: 2.2rem;
}
#rotator {
  display: inline-block;
  cursor: pointer;
}
pre#ascii {
  margin: 0;
  font-family: monospace;
  font-size: 1.1rem;
  line-height: 1;
  transform-origin: center center;
  user-select: none;
}
.rotating {
  animation: spin 8s linear infinite;
}
.rotating.paused {
  animation-play-state: paused;
}
.hint {
  margin-top: 0.8rem;
  color: #666;
  font-size: 0.9rem;
}

@keyframes spin {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}