How do I see the source code in a Digital Edition doc?

First let me say that as an author, I'm a huGe fan of DRM and anything else that protects my ability to feed my family by allowing me to control who can sell my copyrighted works.

But.....I'm creating a book that I hope will eventually be accessed through Adobe Digital Editions and I would like to see what the books look like from the backside. Usually I go into Sigil to have a look at the coding of books whose layout I like.... but because of DRM I can't see the source code in any of the books in my Digital Library.  So, is there a way to take a peek at the coding of a Digital Library book? I don't care about the content, only how the CSS and HTML are done.

Thanks

RS