JSFiddle - React, Tailwind, and code Playground

HTML

<ul>
        <li class="LoadContent" data-url="http://api.jquery.com/not-selector/">Jquery-not-selector</li>
        <li class="LoadContent" data-url="http://api.jquery.com/contents/">Jquery-contents</li>
    </ul>
    <iframe src="" width="80%" height="600" id='frameDemo'></iframe>

CSS

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JavaScript

$(document).ready(function () {
        $('.LoadContent').click(function () {
            //alert($(this).data('url'));
            $('#frameDemo').attr('src', $(this).data('url'));
        });
    });