body {
  max-width: 40rem;
  padding: 1rem;
  margin: auto;
}

pre { overflow: auto }

img { max-width: 100% }

body { color: #242424 }

h1, h2, h3, h4, h5, h6, dt { font-family: sans-serif }

table, td, th {
  border: 1px solid #ccc;
  border-collapse: collapse;
  padding: 0.5rem;
  font-size: 0.8rem;
}