.menu {
    margin: 1.4rem 0;
}

.menu ul {
    list-style: none;
    display: block;
    padding: 0;
    max-width: 45rem;
    /* Width is the same as tufte.css body */
    font-size: 1.2rem;
    width: 87.5%;
}

.menu li {
    display: inline-block;
    margin-right: 1rem;
}

.menu li a {
    text-decoration: none;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}