JSFiddle - React, Tailwind, and code Playground

HTML

<script src="//ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js"></script>
<script src="http://underscorejs.org/underscore-min.js"></script>
<script src="http://backbonejs.org/backbone-min.js"></script>
<script src="https://raw.github.com/marionettejs/backbone.marionette/master/lib/backbone.marionette.min.js"></script>
<script src="http://maps.google.com/maps/api/js?sensor=false&amp;.js"></script>
<script type="text/template" id="map-template">
    
</script>
<script type="text/template" id="main-template">
    <div id="map-container"></div>    
</script>

<script type="text/template" id="layout">
    <div id="main"></div>
</script>
<a href="#" onclick="controller.doMain(); this.innerHTML = 'Click again to watch it fail.'; return false;">Click to load map</a>
<div id="content"></div>

CSS

#map {
    width: 400px;
    height: 400px;
    
}

JavaScript

App = new Marionette.Application();

App.MapView = Marionette.ItemView.extend({
    template: '#map-template',
    id: 'map'
});

App.MainView = Marionette.CompositeView.extend({
    template: '#main-template',
    
    ui:  {
        mapContainer: '#map-container' 
    },
    onRender: function() {
        
        var mapOptions = {
            center: new google.maps.LatLng(-34.397, 150.644),
            zoom: 8,
            mapTypeId: google.maps.MapTypeId.ROADMAP
        };
        
        var mapView = new App.MapView();
        var map = new google.maps.Map(mapView.el, mapOptions);
        mapView.render();
        this.ui.mapContainer.html(mapView.el);
    }
});

App.Layout = Marionette.Layout.extend({
    template: "#layout",
    regions: {
        main: "#main",
    }
});

App.Controller = Marionette.Controller.extend({
    initialize: function() {
        var container = new Marionette.Region({el: "#content"});
        layout = new App.Layout();
        container.show(layout);
    },
    doMain: function() {
        layout.main.show(new App.MainView());
    }
});

controller = null;

App.addInitializer(function(options){
    controller = new App.Controller();
    
});
    

  App.start();