JSFiddle - React, Tailwind, and code Playground

HTML

<script src="//cdnjs.cloudflare.com/ajax/libs/fullcalendar/1.6.4/fullcalendar.min.js"></script>
<link rel="stylesheet" href="//cdnjs.cloudflare.com/ajax/libs/fullcalendar/1.6.4/fullcalendar.css">
<link rel="stylesheet" href="//cdnjs.cloudflare.com/ajax/libs/fullcalendar/1.6.4/fullcalendar.print.css">
<div id="calendar"></div>
<div id="calendar2"></div>
<div id="calendar3"></div>
<div id="calendar4"></div>

JavaScript

$(document).ready(function() {

    $('#calendar, #calendar2, #calendar3, #calendar4').fullcalendar({
        //Extra thingies
    })

});