body {
  margin: 0;
  font-family: system-ui, sans-serif;
  background: #111;
  color: #f4f4f4;
}

main {
  min-height: 100vh;
  display: grid;
  place-content: center;
  text-align: center;
  padding: 2rem;
}

h1 {
  font-size: 4rem;
  margin-bottom: 1rem;
}