h1 {
    color: #369;
    font-size: 250%;
}
h2, h3 {
    color: #444;
    font-weight: lighter;
}
body {
    font-family: Helvetica, Arial, sans-serif;
    margin: 2em;
    color: #333;
}

.nav * {
    display: inline;
}

.nav li {
    padding: 0.5em;
    margin: 0.2em;
    background: #eee;
    border-radius: 5px;
}

.nav li:hover {
    background: #ccc;
    transition-duration: 500ms;
}

.nav li.selected {
    background: #bbb;
    transition-duration: 100ms;
}

.nav .selected a {
    color: #111;
    transition-duration: 100ms;
}

.nav a {
    color: #333;
    text-decoration: none;
}