我正在将bootstrap navwalker用于wordpress自定义主题。我将两个子类别添加到嵌套在主要nav元素内的菜单元素中,请参见屏幕。我注意到未显示两个嵌套元素,如何解决此问题以获得第三级下拉菜单?
CODE
<div class="collapse navbar-collapse navbar-content" id="navbar-shop">
<?php
wp_nav_menu( array(
'theme_location' => 'woocommerce-nav',
'menu' => 'Woocommerce Menu',
'container' => false,
'depth' => 2,
'menu_class' => 'navbar-nav mr-auto',
'walker' => new Bootstrap_NavWalker(),
'fallback_cb' => 'Bootstrap_NavWalker::fallback',
) );
?>
</div>