nav {
    width: 30em;
    margin: 10em auto;
}

.link {
    display: inline-block;
    padding: 0 1em;
    height: 2em;
    line-height: 2em;
    text-align: center;
    text-decoration: none;
    color: #fff;
    background-color: #60b3b3;
}