Quote:
Originally Posted by Ken_Moorhead
I
2: Is there any way of knowing which readers ignore h1...h6 or is it just dumb luck?
3: Once the TOC written, do headers, as intended, ever matter any more? Or is it just an artifact of how Calibre got from ODT to
|
2: It's worse than that. Some renderers will use builtin styles for H1 to h6.
Yes, some applications and ereaders only change the body font, others change face of all of them. Mobi is worst (Kindles older than KK3, or those and some later never upgraded FW).
Some apps mostly or entirely ignore CSS.
Some apps will not use embedded fonts at all, they will only use ones already on the phone/tablet or included in the app.
3: Really headers are just optionally used by Calibre to build a system TOC. There are other ways. You can exclude header levels from TOC building or use none for TOC. Headers historically (HTML3 and earlier) simply rendered larger or smaller bold text for headers. Some apps and ereaders ignore css and thus use header level to decide how to render.