nav {
    display: inline-block;
}

nav ul {
    float: right;
    list-style: none;
    margin: -5 0 0 0;
    padding: 0;
}
nav li {
    float: left;
}
nav a {
    display: block;
    padding: 10px 10px 9px 10px;
    font-weight: 500;
    color: white;
    background-color: #272828;
}
nav a:hover {
    background-color: #a0a0a0;
    color: black;
}
nav li.selected a {
    background-color: #15A9DB;
    color: #FFF;
    font-weight: bold;
}