JSFiddle - React, Tailwind, and code Playground

HTML

<div data-role="page">
    <div data-role="header">
        <h1>header</h1>
    </div>
</div>

JavaScript

$(document).ready(function(){
$.mobile.loading( 'show', {
	text: 'foo',
	textVisible: true,
	theme: 'a',
	html: "<span class='ui-bar ui-overlay-c ui-corner-all'><img src='http://www.shougun.it/images/loading.gif' /><h2>loading...</h2></span>"
});
});