JSFiddle - React, Tailwind, and code Playground

by PhilQ

CSS

#zorgfocuz_iframe {
	width: 400px;
	height: 250px;
	border: 0px;
	box-sizing: border-box;
	
}

JavaScript

var zf_iframe = document.createElement('iframe');
	zf_iframe.id = 'zorgfocuz_iframe';
	zf_iframe.name = 'zorgfocuz_iframe';
	zf_iframe.style.width = '100%';
	zf_iframe.style.height = '300px';
	zf_iframe.seamless = true;
	zf_iframe.style.margin = '0px';
var zf_form = document.createElement('form');
	zf_form.method = 'POST';
	zf_form.target = 'zorgfocuz_iframe';
	zf_form.action = "https://www.zorgfocuz.nl/dashboard/";
var zf_token = document.createElement('input');
	zf_token.type = 'hidden';
	zf_token.name = 'gifudKQnyAmPRCpMdrOY'; // Klant token
	zf_token.value = 'rfds736tKJlnbtETlOl7FC1mAjy7NuUivAl4yc9Y'; // Account token
zf_form.appendChild(zf_token);
document.body.appendChild(zf_form);
document.body.appendChild(zf_iframe);
zf_form.submit();