The CSS background-attachment property is used to set backgrounds to be fixed in place, or to be scrolled with content.

Possible Values:

fixed
Fix a background image to the viewport of an HTML element so it does not move.

scroll
Make an HTML element's background image scroll along with the element as it moves.

local
Use to make your background image scroll with the content inside elements. There must be enough content in your container to make scroll bars appear to see this effect.

Related Examples and Pages:

Create whole page backgrounds for your web documents