body {
  font-family: "Courier New", georgia, serif;
  font-weight: normal;
  background: #808080;
}
header {
  text-align: center;
}
header h1 {
  font-size: 96px;
}
h1, h2, h3, h4, h5, h6, nav {
  font-weight: bold;
  font-family: 'FangSong', 'STFangsong', sans-serif, futura, helvetica, arial, sans-serif;
  margin-bottom: 15px;
}
header {
  margin-bottom: 45px;
}
header h1 a {
  color: #000;
  text-decoration: none;
}
header nav {
  margin-bottom: 30px;
}
header nav a {
  color: #444;
  text-decoration: none;
  margin-left: 10px;
  margin-right: 10px;
}
section {
  background: #eee;
  max-width: 960px;
  margin-left: auto;
  margin-right: auto;
  padding: 45px;
}
section:nth-child(2n+2) {
  background: #ddd;
}
section:nth-child(2n+3) {
  background: #ccc;
}