Flex Slider and Layering images

Flex Slider and Layering images

This is not so much an issue as a question of "is this possible"?

Using ver 2.1 of flex slider. Would like to have the images slide BEHIND a foreground image - it is a picture frame where the area that would show the flexslider slide (like a picture of The Mona Lisa :-) is transparent. Would like the slides, to slide behind the foreground image, without sliding over the side of the picture frame.

I assume some sort of z-order magic could be employed, but not familiar enough with the flexslider code to know if it can be done? Any help would be appreciated. :-)

Joe C.
engineering - DeadParrot Software