Quote:
Originally Posted by Brett Merkey
@Phssthpok,
When user agents (browsers; e-readers) deal with pts units, they seem to translate pts to absolute units--pixels. The results can be bizarre. A 150-px top margin for a 300dpi PaperWhite is 1\2 of an inch on the screen. For a 150dpi Samsung tablet, that translates to a full inch. Perhaps an unwanted difference.
Relative units like ems and %, in the long run, offer better solutions for screen devices.
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Except my margins were in ems -- 3em top, 3em bottom, if you look above -- and these were translated into 2em top, 1em bottom. I could perhaps understand it if I started off in points (but I would still expect the top and bottom margins to come out the same size), but I don't understand why it takes it on itself to make arbitrary changes to my preferred settings.