51help TIY
码：
<html> <head> <style type="text/css"> body { background-image: url('/i/eg_bg_03.gif'); background-repeat: no-repeat; background-attachment:fixed; background-position: 50px 100px; } </style> </head> <body> <p><b>注释：</b>为了在 Mozilla 果，background-attachment 置为 "fixed"。</p> </body> </html>
查看结果: