转载-CSS IE中的if语句

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IE下专属CSS：
<![if !IE]> <link rel="stylesheet" type="text/css" href="NOT-IE.css" /> <![endif]>

IE 6 ONLY:
<!--[if IE 6]> <link rel="stylesheet" type="text/css" href="IE-6-SPECIFIC.css" /> <![endif]-->

IE 5 ONLY:
<!--[if IE 5]> <link rel="stylesheet" type="text/css" href="IE-5-SPECIFIC.css" /> <![endif]-->

IE 5.5 ONLY:
<!--[if IE 5.5000]> <link rel="stylesheet" type="text/css" href="IE-55-SPECIFIC.css" /> <![endif]-->

IE6或更低:
<!--[if lte IE 7]> <link rel="stylesheet" type="text/css" href="IE-6-OR-LOWER-SPECIFIC.css" /> <![endif]-->

非IE:
<![if !IE]> <link rel="stylesheet" type="text/css" href="REAL-STYLESHET.css" /> <![endif]>