body {
  font-family: system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  max-width: 900px;
  margin: 3rem auto;
  padding: 0 1rem;
  line-height: 1.6;
}

h1 {
  margin-bottom: 0;
}

h2 {
  margin-top: 2rem;
}