body {
  font-family: system-ui, sans-serif;
  margin: 0;
  padding: 2rem;
  color: #1f2933;
  background: #f5f7fa;
}

main {
  max-width: 40rem;
  margin: 0 auto;
}

.marker {
  font-family: ui-monospace, monospace;
  color: #0b6e4f;
}