.inner {
  width: 700px;
}
nav {
  margin: 0;
  padding: 0;
  text-align: center;
}
nav ul {
  list-style: none;
}
nav li {
  display: inline;
}
nav li.active {
  font-weight: bold;
}
nav a {
  display: inline-block;
  padding: 2px 5px;
}