JSFiddle - React, Tailwind, and code Playground

HTML

<link rel="stylesheet" href="http://ajax.googleapis.com/ajax/libs/jqueryui/1.8/themes/dot-luv/jquery-ui.css">
<div>node level1
     <div>node level2
         <div>node level3...etc</div>
    </div>
</div>

CSS

div { color: black; }

JavaScript

$('div').click(function(){
  $(this).children('div').css('color','red');
});