<h1>Understanding the difference between EM, PX, %age and PT<br> - <a href="http://aamirshahzad.net">Aamir Shahzad</a></h1> <p>Let's understand Percent's philosophy by a jsfiddle coding example. Resize output window to check <b>%age</b> in action.</p>
body { font-family: calibri, arial; } h1 { font-size: 200%; } h1 a { text-decoration: none; } p { font-size: 150%; } @media (min-width:768px) and (max-width: 1024px) { body { font-size: 90%; } } @media(max-width: 768px) { body { font-size: 75%; } }