* { box-sizing: border-box; }

body {
    background: lemonchiffon;
    margin: 0 !important;
}

nav#sections {
    font-family: monospace;
    font-size: 0.8em;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 12;
}

nav#sections ul {
    margin: 0;
    padding: 0;
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    list-style: none;
}

nav#sections ul li {
    list-style-type: none;
    -webkit-box-flex: 1;
    -ms-flex: 1;
    flex: 1;
    padding: 0;
}

nav#sections ul li a {
    display: block;
    width: 100%;
    height: 100%;
    padding: 0.75em;
    text-align: center;
    color: black;
    text-decoration: none;
    border-bottom: 1px solid #7F7D69;
    border-right: 1px solid #7F7D69;
    background: lemonchiffon;
}

nav#sections ul li a:hover,
nav#sections ul li a.current {
    background: #FEDF4E;
}

@media(max-width: 650px) {
    nav#sections ul {
        display: block;
    }
}

body.guide {
    background: #77746d;
}

body.guide nav#sections ul li a {
    background: #77746d;
    color: black;
    border-bottom-color: black;
    border-right-color: black;
}

body.guide nav#sections ul li a:hover,
body.guide nav#sections ul li a.current {
    background: #64635E;
}

nav.table-of-contents {
    top: 28px;
}