JSFiddle - React, Tailwind, and code Playground

HTML

<iframe src="http://fiddle.jshell.net/cheeaun/5aR3y/show/light/" id="iframe" />

JavaScript

var iframe = $('iframe');
var doc = iframe.contentWindow.document;
var body = Slick.find(doc, 'h1');
Element.setStyle(body, 'background', 'red');
try {
    Element.set(body, 'html', 'nice html');
} catch (e){
    console.log(e);
}
try {
    Element.addEvent(body, 'click', function(){alert('nice')});
} catch (e){
    console.log(e);
}