JSFiddle - React, Tailwind, and code Playground
by nobuts
HTML
<script type="text/javascript" src="http://prototype.xsanisty.com/calx/jquery-calx-1.1.8.min.js"></script>
<form id="booking_form">
Adult : 2,500<br />
Child : 2,000<br />
<input type="hidden" name="p1" value="2500" />
<input type="hidden" name="p1" value="2000" />
</form>
JavaScript
$('#booking_form').calx({});