I'm using the following code to add some conditional styles to a webpage (I use traditional conditional comments for IE 9 and down):
<?php if (stripos($_SERVER['HTTP_USER_AGENT'], 'MSIE 10')) { ?>
<link href="/css/ie9.css" media="screen" rel="stylesheet" />
<?php } ?>
The problem is that the style sheet is still not being applied to some versions of IE 10, and definitely not IE 11 preview. Is there a way to target all versions of IE 10 and up? I've only seen formatting that uses [1-9], but [10-11] doesn't seem to be working.