If desired, type
url(image.gif), to use an image for the background.
If desired, type
repeat to tile the image both horizontally and vertically,
repeat-x to tile the image only horizontally,
repeat-y to tile the image only vertically, and
no-repeat to not tile the image.
If desired, type
fixed or
scroll to determine whether the background should scroll along with the canvas.
If desired, type
x y to set the position of the background image, where
x and
y can be expressed as a percentage or an absolute distance from the top-left corner. Or use values of
left,
center, and
right for
x and
top,
center, or
bottom for
y.