Please put a margin at the bottom of the book's page in the EMBED view

If you look at the bookreader in this view - http://proto.us.archive.org/details/furnitureuphol00john - (or anywhere where it's embedded) you can see that the bottom bar covers the bottom of the book's pages. Since there's now way to collapse the toolbar in the EMBED view, I was hoping you can put the same amount of margin as is on top on the bottom, between the bottom of the pages and the top of the toolbar.

Thanks!