background-repeat:repeat
The image tiles across and down the background area.

background-repeat:repeat-x
The image tiles across the background area.

background-repeat:repeat-y
The image tiles down the background area.

background-repeat:no-repeat
The image displays once only.

A code example from Stylin’ with CSS, Third Edition by Charles Wyke-Smith. Visit stylinwithcss.com for more CSS information and updates.