high resolution CSS sprites

Question

I\'m generating CSS sprites. I want to use these sprites at multiple sizes. I\'ve searched but haven\'t been able to figure out how to functionally scale a CSS sprite--e.g

Answer 1

The options I see are:

1. Either have the sprite's contents in different sizes in one sprite.

2. Or take the original sprite and manually resize it one time to create a smaller copy of it. Then reference the smaller sprite version for when you need the smaller images.