body {
  margin: auto;
  width: 60rem;
  background: #ccc;
  padding: 1rem;
}

h1, h2, h3, h4, h5, h6 {
  padding: 0.5rem;
  padding-left: 1rem;
  margin-bottom: 1rem;
  margin-top: 1rem;
  font-weight: bold;
  background: #999;
}

p {
  margin-bottom: 0.5rem;
  margin-top: 0.5rem;
}