JSFiddle - React, Tailwind, and code Playground

HTML

<iframe id="myIframe"></iframe>

CSS

#myIframe {
  height: 100px;
  width: 300px;
  background: #ffb;   
}

JavaScript

var myJsVar = '<html><head></head><body><input type="text" id="myInput" /></body></html>';
$('#myIframe').contents().find('html').html(myJsVar);
$('#myIframe').contents().find('#myInput').keyup(function() {$(this).val('new value');});