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Old 12-23-2020, 12:00 PM   #2
kovidgoyal
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in the viewer ll font sizes are converted to relative sizes to allow for text zooming. So your px size becomes an em size, which in turn is scaled by the viewers font size preference. You cannot rely on pixel perfect font sizes in ebooks. The whole point of them is that they are supposed to be reflowable, at different text sizes.
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