Reference
<!--[if IE 8]>
According to the conditional comment this is IE 8<br />
<![endif]-->
<!--[if lt IE 9]>
According to the conditional comment this is IE lower than 9<br />
<![endif]-->
<!--[if gt IE 7]>
According to the conditional comment this is IE greater than 7<br />
<![endif]-->
For example,
<html>
<head>
<link rel="stylesheet" href="my-styles.css">
<!--[if IE 8]>
<link rel="stylesheet" href="my-ie8-only-styles.css">
<![endif]-->
</head>
<body>
<p>Hello World!</p>
</body>
</html>
Or you could use it to only render certain html markup...
....
<!--[if IE 8]>
<div id="ie8Only">IE8 Only</div>
<![endif]-->
....
与恶龙缠斗过久,自身亦成为恶龙；凝视深渊过久,深渊将回以凝视…
