body {
  font-family: "Verdana", sans-serif;
  background: #fefefe;
  color: #333;
  max-width: 800px;
  margin: auto;
  padding: 20px;
  line-height: 1.6;
}

header {
  text-align: center;
  margin-bottom: 20px;
}

nav a {
  margin: 0 10px;
  text-decoration: none;
  color: #0077cc;
}

nav a:hover {
  text-decoration: underline;
}

article {
  border-bottom: 1px solid #ddd;
  margin-bottom: 20px;
  padding-bottom: 10px;
}