JSFiddle - React, Tailwind, and code Playground

HTML

<script src="http://cdnjs.cloudflare.com/ajax/libs/ckeditor/4.2/ckeditor.js"></script>
<textarea id="editor">
    <h3>Hi there!</h3>
    <p>This is your custom stylesheet.</p>
</textarea>

JavaScript

CKEDITOR.replace( 'editor', {
    on: {
        instanceReady: function() {
            this.document.appendStyleSheet( 'http://www.csszengarden.com/214/214.css?v=8may2013' );
        }
    }
} );