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Old 05-02-2010, 03:03 PM   #2
Ankh
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Posts: 708
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Join Date: Oct 2008
Location: Ottawa, ON
Device: Kobo Touch
IMHO, for ePubs, it is very bad idea to redefine the base font size. It is best left untouched, at 1em. There is, always, a default size built into the rendering software, even if you don't know what it is. It is a function of the rendering software, something specific to the target device...

If the font of the text is to small/big, let the reader software deal with it (increase/decrease of the font size on ADE readers, for example).

I use em units everywhere, which will scale nicely if user changes the default font size. It is good to keep the number of different formatting/fonts/font-sizes small, effective and completely contained in CSS. The consistency is almost a must, the same formatting should be used for all book elements of same type (all headers are the same, all quotes as well, etc.). All in all, the number of different font sizes needed for nicely rendered books is small, headers are bigger, if you use emulations of small caps, or more than one font family for elements ...

Last edited by Ankh; 05-02-2010 at 03:06 PM.
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