100% guaranteed EPUB is a SUBSET of the possible CSS.
~90% of those EPUB devices, DO NOT support all the allowed EPUB CSS, or in their effort to allow user control, have mucked up what the author CAN do with them.
eg a simple 50% width HR is supposed to auto center. HA! you want it in the center, you better push it there with a margin-left: 50%
Read the MR Wiki sections on formats, there are dozens of issues (and some work-arounds like that above)
|