<p lang="en">Hello!</p> <p lang="en-us">Hi!</p> <p lang="en-gb">Ello!</p> <p lang="us">Hi!</p> <p lang="no">Hei!</p> <p><b>Note:</b> For [<i>attribute</i>|=<i>value</i>] to work in IE8 and earlier, a DOCTYPE must be declared.</p>