body {
  font-family: sans-serif;
  margin: 0;
  padding: 0;
  background-color: #fff;
  color: #333;
}

header {
  background-color: #f0a;
  color: white;
  padding: 2em;
  text-align: center;
}

nav a {
  margin: 0 1em;
  color: white;
  text-decoration: none;
}

section {
  padding: 2em;
  border-bottom: 1px solid #eee;
}

footer {
  text-align: center;
  padding: 1em;
  background-color: #eee;
}