Choosing a DOCTYPE that is just simple and strict

Having problem with writing doctype with your bare hands?

You may use this classic approach

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">

Or try this much less used approach :-D

<!DOCTYPE HTML>

Test with this box model

width:160px;
background:orange;
width: 100px;
padding: 20px;
background: orange;
border: solid 10px #000;

document.compatMode =