html {
  font-size: 18px;
  margin: 1em;
}

body {
  font-size: inherit;
  margin-bottom: 4em;
  margin-left: auto;
  margin-right: auto;
  margin-top: 4em;
  max-width: 48em;
}

h1 {
  font-size: 24px;
  font-weight: 700;
  line-height: 1.25;
}

p {
  font-size: inherit;
  font-weight: 400;
  line-height: 1.5;
}