body {
  max-width: 760px;
  margin: 50px auto;
  padding: 0 20px;
  font-family: Georgia, serif;
  font-size: 18px;
  line-height: 1.7;
  color: #222;
  background: #fafafa;
}

header {
  margin-bottom: 40px;
}

h1, h2 {
  font-weight: normal;
  line-height: 1.2;
}

nav a {
  margin-right: 15px;
}

a {
  color: #0645ad;
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}