body {
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
  font-family: -apple-system, BlinkMacSystemFont, "Helvetica Neue", Helvetica,
    Arial, sans-serif;
}
a {
  display: block;
  font-size: 2rem;
  margin: 1rem;
}

/* on mobile, make it a column */

@media screen and (max-width: 800px) {
  body {
    flex-direction: column;
  }
}