Okay,
So far, I found that:
- <img> doesn't work in Sigil readers (Bibi, EPUBJS, Readium), but embedding it in <svg> works. Very surprising
- tables and SVG are not implemented in SumatraPDF, others?
- height in <svg> looks like it means "visible height of the image relative to its width". A 1920x1080 at 100% for width and height will be a white square with the image in the center, while height="56%" (1080/1920) is enough to fully display it. It's not like HTML.
Is there any other mine I should be aware of?
