JSFiddle - React, Tailwind, and code Playground

HTML

<div id="menu">
 <div class="trigger"> show or hide it </div>
   <ul class="things">
     <li> item 1 </li>
     <li class="active"> item 2 </li>
     <li> item 3 </li>
   </ul>

 <div class="trigger"> show or hide it </div>
   <ul class="things">
     <li> item 4 </li>
     <li> item 5 </li>
     <li> item 6 </li>
   </ul>
</div>

JavaScript

$($('.active').parent('ul').get(0)).css('display', 'none');