transparent text within a coloured box

[jamwil]

Hey guys, not sure if this is possible with css, but I have a photographic background for a website, and would like to create text that is completely transparent so that the background shows through each letter.

The letters will be contained within a white box. I don't think this is possible (I've tried a couple different ways I can think of) but can anyone let me know definitively?

Cheers,
James

[Dormilich]

although it might look neat, I doubt it will be readable. I’d advise against it.

[jamwil]

I've seen the effect on a number of signs / billboards etc, but never on a site. It might not work out but part of me wants to at least give it a try.

I'm guessing though that it is not possible to make the letters completely transparent, while having their bounding box a solid colour.