JSFiddle - React, Tailwind, and code Playground

HTML

<script src="http://underscorejs.org/underscore-min.js"></script>
<script src="http://backbonejs.org/backbone-min.js"></script>
<script src="http://marionettejs.com/downloads/backbone.marionette.js"></script>
<div class="content">click me</div>

CSS

body {
    margin: 10px;
    font: 13px/1.3 Arial;
}

JavaScript

var ItemView = Backbone.Marionette.ItemView.extend({
    el : '.content',
    events : {
        'click' : 'clickHandler'
    },
    clickHandler : function () {
        this.$el.append('clickHandler');
    }
});

new ItemView();