I'm putting together a sprite and have two questions.

Something I've always wondered whether possible is negatively positioning a background picture to the right or bottom. A negative position is bread and butter stuff on the left of an element or top but what about the right and bottom?

If I have a 500px by 500px div can I then position the left edge of a background image to appear 5px in from the right using a negative value rahter than 495px to push it over?

The second question is whether I can use just a small portion of an image and repeat it without the rest of the image showing.

For example, I may have a sprite thats 300px square and filled with all kinds of things. Is it possible to take a 50px square portion of that image and repeat it in the background of an element?

I very much doubt either is possible but must put the monkey to sleep!

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