body {
  max-width: 42rem;
  margin: 2rem auto;
  padding: 0 1rem;
  font-family: sans-serif;
  line-height: 1.5;
}

h1 { margin-bottom: 0; }
h2 { margin-top: 2rem; }

.eyebrow,
.updated,
.lead { color: #555; }

nav { margin-top: 2rem; }