JSFiddle - React, Tailwind, and code Playground

HTML

<div data-role="page" id="page1">
	<div data-role="content">	
		<input type="text" name="input1" id="input1" data-theme="A">
	</div>
</div>

JavaScript

$(document).bind('pageinit', function() {
		$("#page1").bind('pageshow', function() {
        	$('#input1').focus();
        })
	});