How to force IE8 to emulate the page render of IE7

There are two ways to implement this tag:

* On a per-site basis, add a custom HTTP header
X-UA-Compatible: IE=EmulateIE7

* On a per-page basis, add a special HTML tag to each document, right after the tag
<meta http-equiv=”X-UA-Compatible” content=”IE=7″ />

More info on the IE8 Team Blog, and specifically on this post.