body {
  max-width: 680px;
  margin: 80px auto;
  padding: 0 20px;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  line-height: 1.7;
  color: #111;
  background: #fff;
}

h1 {
  font-size: 28px;
  margin-bottom: 40px;
  font-weight: 600;
}

h2 {
  font-size: 20px;
  margin-bottom: 8px;
  font-weight: 500;
}

.date {
  font-size: 14px;
  color: #777;
  margin-bottom: 10px;
}

a {
  color: inherit;
  text-decoration: underline;
}

article {
  margin-bottom: 40px;
}

footer {
  margin-top: 80px;
  font-size: 14px;
  color: #777;
}