There is such a menu structure:
<ul class="nav navbar-nav nav__top-menu"> <li class="nav-item"> <a class="nav-link" href="index.html">home</a> </li> <li class="nav-item dropdown"> <span class="nav-link" id="thisIsUs" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false" >about</span> <ul class="dropdown-menu" aria-labelledby="thisIsUs"> <li><a class="dropdown-item" href="#">sub1</a></li> <li><a class="dropdown-item" href="#">sub2</a></li> <li><a class="dropdown-item" href="#">sub3</a></li> <li><a class="dropdown-item" href="#">sub4</a></li> <li><a class="dropdown-item" href="#">sub5</a></li> </ul> </li> </ul> Some top-level menu items are a links, and some are span containing a nested list with links.
I connect the menu like this:
<?php $args = array( 'menu' => 'header-menu', 'menu_class' => 'nav navbar-nav nav__top-menu', 'container' => 'ul', ); wp_nav_menu($args); ?> But by default, all menu items are displayed а .
How to make the list item li with the class dropdown contain not a link, but such a span: <span class="nav-link" id="thisIsUs" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false" >...</span> .
It is exactly this html structure that is needed, since library work for responsive menu depends on it.