body {
  font-family: Arial, sans-serif;
  max-width: 640px;
  margin: 4rem auto;
  padding: 0 1rem;
  line-height: 1.6;
  font-size: 14px;
}

h1,
h2,
h3,
h4,
h5,
h6,
strong,
b {
  font-weight: 500;
}

h1 {
  font-size: 1.1rem;
}

h2 {
  font-size: 1rem;
}

h3 {
  font-size: 0.95rem;
}

code {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.9em;
}

pre code {
  display: block;
  overflow-x: auto;
  padding: 0.75rem;
}

time {
  font-variant-numeric: tabular-nums;
}