body {
  margin: 0;
  padding: 24px;
  font-family: -apple-system, 'Apple SD Gothic Neo', 'Malgun Gothic', sans-serif;
  color: #1a1a1a;
  line-height: 1.6;
}

h1 {
  font-size: 20px;
}

h2 {
  font-size: 16px;
  margin-top: 24px;
}

p, li {
  font-size: 15px;
}

.updated-at {
  color: #666;
  font-size: 13px;
}