Background Attachment
Values: scroll | fixed
Example code:
<style
type="text/css">
body {
background-attachment: fixed;
background: #C0FFC0 url(bg.gif);
background-repeat: repeat-y;
</style>
.....
<body>
....
</body>
body {
background-attachment: fixed;
background: #C0FFC0 url(bg.gif);
background-repeat: repeat-y;
</style>
.....
<body>
....
</body>