body {
  font-family: 'Helvetica Neue', sans-serif;
  line-height: 1.6;
  margin: 0;
  padding: 0;
  background: #fefefe;
  color: #222;
}

header {
  background: #202124;
  color: white;
  padding: 2rem;
  text-align: center;
}

header {
  text-align: center;
  margin-bottom: 20px;
}
header img {
  height: 60px;
}


nav {
  background: #eaeaea;
  text-align: center;
  padding: 1rem 0;
}

nav ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

nav ul li {
  display: inline;
  margin: 0 15px;
}

nav ul li a {
  color: #222;
  text-decoration: none;
  font-weight: bold;
}

section {
  padding: 2rem;
  max-width: 800px;
  margin: auto;
}

footer {
  text-align: center;
  padding: 1rem;
  background: #ddd;
  margin-top: 3rem;
}