JSFiddle - React, Tailwind, and code Playground

HTML

<iframe id="subpage" src="http://www.administrator.de"></iframe>

CSS

#subpage{
	-ms-zoom: 0.5;
    -moz-transform: scale(0.5);
    -moz-transform-origin: 0 0;
    -o-transform: scale(0.5);
    -o-transform-origin: 0 0;
    -webkit-transform: scale(0.5);
    -webkit-transform-origin: 0 0;
	width:1024px;
	height:768px;
	overflow:hidden;
}