JSFiddle - React, Tailwind, and code Playground
by gRoberts
HTML
<div id="mainmenu">
<ul class="menu">
<li class="item-435">a</li>
<li class="item-468 active deeper parent">
<a href="#">News</a>
<ul>
<li class="item-469 current active">
<a href="/index.php/news/news-topaktuell">Topaktuell</a>
</li>
<li class="item-480">
<a href="/index.php/news/events">Events</a>
</li>
</ul>
</li>
<li class="item-476">a</li>
<li class="item-477">a</li>
<li class="item-478">a</li>
<li class="item-479">a</li>
</ul>
</div>
JavaScript
$('.menu li a').click(function(e) {
e.preventDefault();
$(this).parent().find('> ul').slideToggle();
});