IE8 is different in a good way. It really goes after the standards they should have been using the whole time. The problem is that if you were coding for IE7 or worse IE6 your site might be stuck in a bad place. Luckily there is a meta tag to push the IE8 browser to IE7 Mode.
<meta http-equiv=”X-UA-Compatible” content=”IE=EmulateIE7”>
This will flip IE8 into IE7 Mode…