I've noticed at the end of paperbacks I've been reading they have a few chapters of the next book in the series (or maybe an earlier one). In the book I just finished (Kill Shot), it has a page before the preview chapters which has CENTERED ON THE PAGE (centered top and bottom and right and left):
Emily Bestler Books
Turn the page for a preview of American Assassin,
now a major motion picture
So in my Word document, if I use the paragraph center for what's on that page, it will be centered right and left. But how do I center it on the page (top to bottom)?
I can put in blank lines and hope they won't be thrown out by HTML (like they were here — I had blank lines before "Turn the page…"), but how do I know how many? Each e-reader device is different, especially since the reader chooses the font size.