.menu {
    position: fixed;
    overflow: hidden;
    text-align: center;
    padding: 5px;
    top: 0;
    width: 100%;
}

body.dark > .menu {
    background-color: #202020;
}

body.light > .menu {
    background-color: #3f3f3f;
}

body.light > .menu > a {
    color: #e8e8e8;
}

body.dark > .menu > a {
    color: #d0d0d0;
}