<body background="cnshell.gif" bgproperties="fixed">
或用CSS样式表定义：
<style type="text/css">
<!--
body { background-image: url(image/bg.gif); background-attachment: fixed}
-->
</style>
<body background="cnshell.gif" bgproperties="fixed">
或用CSS样式表定义：
<style type="text/css">
<!--
body { background-image: url(image/bg.gif); background-attachment: fixed}
-->
</style>