要指定目标媒体，请使用media属性-
<style> <!-- <!doctype html public "-//w3c//dtd html 4.0//en"> <html> <head> <title>link to a target medium</title> <link rel="stylesheet" type="text/css" media="print, handheld" href="foo.css"> </head> <body> <p>the body... </body> </html> --> </style>