repeat-x and repeat-y, top left
no repeat, top left
no repeat, top right
no repeat, bottom left
no repeat, bottom right
no repeat, center
repeat-x, center
repeat-y, center
repeat-y, 0% 0%
repeat-x, 20% 20%
repeat-y, 40% 40%
repeat-x, 60% 60%
repeat-y, 80% 80%
repeat-x, 100% 100%
repeat-x, 75% 100%
repeat-y, 100% 25%
repeat-x and repeat-y, top left
repeat-x and repeat-y, bottom right
repeat-x and repeat-y, center
no repeat, center