JSFiddle - React, Tailwind, and code Playground
HTML
<div id="mydiv" style="width:100px; height: 100px; background-color:#000000; cursor:pointer;">
<div id="INSIDE" style="background-color:#ffffff; border-style:none;"></div>
</div>
JavaScript
$('#mydiv').click(function() {
alert($(this).html());
});