body {
  /* GitHub.com frontend fonts */
  font-family: -apple-system, BlinkMacSystemFont, Segoe UI, Helvetica, Arial,
    sans-serif, Apple Color Emoji, Segoe UI Emoji, Segoe UI Symbol;
  font-size: 14px;
  line-height: 1.5;
}

h1 {
  font-size: 1.5rem;
  font-weight: bold;
  margin-bottom: 0.5rem;
}