body {
  margin: 24px;
  font-family: Arial, "Malgun Gothic", sans-serif;
  font-size: 16px;
  line-height: 1.7;
  color: #222;
  background: #fff;
  overflow-wrap: anywhere;
}

h1 {
  font-size: 24px;
}

h2 {
  font-size: 18px;
}

h3 {
  font-size: 16px;
}

section, footer {
  margin-top: 32px;
}