Quote:
	
	
		| 
					Originally Posted by RbnJrg  By chance, did you open the epub that I have attached in my previous post with Calibre (that is the plataform where you have experimented problems)?   | 
	
 I appreciate your effort, but you're still answering a different question than the one I ask. 
My problem is not (just) with Calibre. If I convert from xhtml to epub with Calibre, the result looks the same as in your screen shots. That was the file I uploaded - to let people have an idea of what I was trying to do. (In other words: The epub you made with Sigil did not solve any problems in the file you started with - because there where no problems in that file.) 
This is (some of) the conversions I've tested:
1) xhtml -> (calibre) -> epub: Good result. The font I specified doesn't exist, but that's OK. 
2) xhtml -> (kindlegen) -> mobi: Good result. (Kindle DX does not seem to support svg at all, but if that was the only problem I might live with that.) 
3) xhtml -> (calibre) -> mobi: Good result - like #1 the font specification is gone, but it's good enough. 
4) xhtml -> (kindlegen) -> mobi -> (kindlegen) -> Kindle for iOS: Conversion fails. 
5) xhtml -> (calibre) -> mobi -> (kindlegen) -> kindle for iOS: Good result. (That this works, when #4 didn't, is perhaps what baffles me most.) 
6) xhtml -> (kindlegen) -> mobi -> (calibre) -> epub: Poor result - the svg graphic becomes a small box in the corner.
7) your sigil epub -> (kindlegen) ->  mobi -> (kindlegen) -> Kindle for iOS: Conversion fails, same as #4. 
	Quote:
	
	
		| Make your epub with Sigil, and after that, convert it to .mobi with Kindlegen/Kindle Previewer and all will work fine. | 
	
 I guess if I upload both an epub and a mobi, I should have most people covered with little need for other people to do their own conversion. But the problem with iOS devices worries me.