main {
  margin: 50px;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;

  pre {
    font-size: 20px;
  }
}

.anchor {
  color: black;
  text-decoration: none;
}

@media screen and (min-width: 1000px) {
  main {
    max-width: 40em;
  }
}