Code:
1 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
2 <html xmlns="http://www.w3.org/1999/xhtml">
3 <head>
4 <title>Darkness would teach me more appreciative sight!</title>
5 <style type="text/css">
6 HTML {
7 FILTER: progid:DXImageTransform.Microsoft.BasicImage(grayscale=1)
8 }
9 </style>
10 </head>
11 <body>
12 <h1>To face the earthquake, Union is strength.</h1>
13 <img src="http://www.baidu.com/search/img/banner.jpg" alt="banner jpg" />
14 </body>
15 </html>
16
2 <html xmlns="http://www.w3.org/1999/xhtml">
3 <head>
4 <title>Darkness would teach me more appreciative sight!</title>
5 <style type="text/css">
6 HTML {
7 FILTER: progid:DXImageTransform.Microsoft.BasicImage(grayscale=1)
8 }
9 </style>
10 </head>
11 <body>
12 <h1>To face the earthquake, Union is strength.</h1>
13 <img src="http://www.baidu.com/search/img/banner.jpg" alt="banner jpg" />
14 </body>
15 </html>
16
效果：
