Bricks nav menu descriptions

//php used to show the descriptions
<?php
add_filter('walker_nav_menu_start_el', 'add_description_to_menu_item', 10, 4);

function add_description_to_menu_item($item_output, $item, $depth, $args) {
    if ( !empty($item->description)) {
        $item_output .= '<span class="menu-item__description">' . $item->description . '</span>';
    }
    return $item_output;
}

/*css styles the WP Nav menu descriptions*/
.menu-item__description {
    color: var(--shade-ultra-light);
    font-size: var(--text-s);
    font-weight: 200;
    display: block;
    padding: 10px 40px 30px 40px;
    margin-top: -20px;
    line-height: 1.2;
}

/*makes submenu container text wrap at min 300px*/
.brxe-nav-menu .bricks-nav-menu .sub-menu {
    white-space: normal;
    min-width: 300px;
}