You can slice objects in a document and export them as a single CSS sprite image. Using a single CSS sprite image instead of multiple images improves the loading time of a website by reducing the number of server requests.
When you export slices as a CSS sprite image, with the image file, a CSS file that contains the displacement values is also generated.
- Right-click the slice or group of slices.
- Select Export CSS Sprite.
- In the Export dialog box, click Export.
For more information, see Working with CSS sprites in Fireworks CS6.