switch-guide/docs/css/custom.css

@media screen and (min-width: 76.25em) {
    .md-nav--lifted > .md-nav__list > .md-nav__item--active > .md-nav__link {
        position: absolute;
        box-shadow: none;
        padding-top: 4px;
    }

    .md-sidebar__scrollwrap {
        background: rgba(0, 0, 0, 0.2);
        border-radius: 10px;
        height: fit-content !important;
    }

    .md-sidebar__scrollwrap > .md-sidebar__inner {
        padding-top: 5px;
        padding-bottom: 20px;
    }

    .md-sidebar.md-sidebar--primary {
        order: 1;
    }

    .md-sidebar__scrollwrap:not(:has(.md-nav.md-nav--secondary)) {
        background: transparent;
    }
}