JSFiddle - React, Tailwind, and code Playground

HTML

<link rel="stylesheet" href=" https://static.branch9.test.xero.com/content/develop/xero.css">
<script src="https://static.branch9.test.xero.com/content/develop/libs.js"></script>
<script src="https://static.branch12.test.xero.com/content/develop/xero.js"></script>
<div id="container"></div>

CSS

#container { margin: 100px; }

JavaScript

Ext.widget({
    xtype: 'button',
    renderTo: 'container',
    text: 'Click Me',
    handler: function () {
        alert("I don't usually use alerts, but when I do..." + "\n" + "They're for a demo");
    }
});