[DiapDealer]

As a reader or a formatter of ebooks, I have very little interest in the visual "authenticity" of included excerpts. I just want something visually different that will (at a glance) tell me that "this is not the normal narrative/dialogue" right here. So different margins/font-sizes/font-styles are usually enough for me. The content of the text itself will usually inform me that what follows is from a newspaper or a letter. That's usually sufficient for me. I might change the font-family to monospace so that the reader/app's default monospaced font is used, but that's about the extent of it.