<?php do_action('onschedule_edge_action_before_top_navigation'); ?>

<nav class="edgtf-main-menu edgtf-drop-down <?php echo esc_attr($additional_class); ?>">
    <?php
        wp_nav_menu( array(
            'theme_location' => 'main-navigation' ,
            'container'  => '',
            'container_class' => '',
            'menu_class' => 'clearfix',
            'menu_id' => '',
            'fallback_cb' => 'top_navigation_fallback',
            'link_before' => '<span>',
            'link_after' => '</span>',
            'walker' => new OnScheduleEdgeClassStickyNavigationWalker()
        ));
    ?>
</nav>

<?php do_action('onschedule_edge_action_after_top_navigation'); ?>