JSFiddle - React, Tailwind, and code Playground

HTML

<script src="http://requirejs.org/docs/release/2.1.4/minified/require.js"></script>
Check the console.

JavaScript

require.config({
    'paths': {
        'jquery': 'http://ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min',
        'blockUI': 'http://malsup.github.com/jquery.blockUI'    
    },
    'shim': {
        'blockUI': ['jquery']    
    }
})

require(['blockUI'], function(){
   $.blockUI({ message: '<h1> Just a moment...</h1>' });
});