Iframes
Simple way:
<iframe src="some.html" style="border: none; display:block; width:100%; height:100vh;">
</iframe>
Better solution
<script>
function resizeIframe(obj) {
obj.style.height = obj.contentWindow.document.body.scrollHeight + 'px';
obj.style.width = obj.contentWindow.document.body.scrollWidth + 'px';
}
</script>
<iframe src="some.html" style="border: none" onload="resizeIframe(this)">
</iframe>
links -dump -width 300 [URL|file.html]