html {
  font-size: 16px;
}

body {
  margin: 24px;
  font-family: sans-serif;
  line-height: 1.5;
}

main {
  max-width: 720px;
}

h1 {
  margin: 0 0 16px;
  font-size: 1.5rem;
}

ul {
  margin: 0;
  padding-left: 20px;
}

li + li {
  margin-top: 8px;
}