Walker_Nav_Menu::start_lvl()
Method: Starts the list before the elements are added.
Source: wp-includes/class-walker-nav-menu.php:50
Method: Starts the list before the elements are added.
Source: wp-includes/class-walker-nav-menu.php:50
Filter Hook: Filters the CSS class(es) applied to a menu list element.
Source: wp-includes/class-walker-nav-menu.php:72