I am creating a PHP based Javascript photo gallery from scratch
The problem is that I want to make the difference between a simple image and a photo album.
This is how simple borders of images look.

Is it possible to create facebook, for example, borders of a photo album (double borders that create the effect of several images) via css or CSS3?

PS I do not know if this will be possible with the old css standards. I mean, CSS3 can probably do this, but it won't be backward compatible. In the other hand, currently my php side is generating 100x100 pixels. I need something that will not be destroyed if I increase the size of my thumbs.
thanks in advance
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