Looks good! One minor point: it looks like some of your conversion isn’t keeping accurate styling. For example, if you look at the letter in https://standardebooks.org/ebooks/edgar-allan-poe/short-fict... that starts with “In conformity with an order” you’ll see (in Firefox and Chrome, Safari’s in the process of adding the styling) that the address is 90º as per the original scans. The same in https://flowery.app/books/edgar-allan-poe/short-fiction/thou... falls back to normal display, which is fine but perhaps a little bit of a shame.
Good catch! I am still fleshing out the EPUB parser, so loading of CSS and images (other than the SE logo) is not yet supported. I hard-coded the styling for now, which works well enough thanks to the books’ consistent markup.
I also overlooked the diary styling of “Mellonta Tauta.”
I also overlooked the diary styling of “Mellonta Tauta.”