CSS to determine position of objects AS3

Hi

Is it possible to place object on stage with positions read from a CSS file?

Basically what I want is to create themes for the application. As and when a different theme is selected, xy position, skins and colors of objects should get applied accordingly.

How far its practical? If this is not practical could any one suggest a better way of applying theme.

This is for a pure AS3 project.

Thanks!!