Originally Posted by Jellby
It is also included in CSS2.1 ( http://www.w3.org/TR/CSS21/syndata.html#length-units):
px: pixel units — 1px is equal to 0.75pt.
At the time of the ePub 2 spec, CSS2.1 was still a working draft, so you are also right that it's not entirely applicable. However, this pixel definition has been in CSS2.1 since 2010.
Anyway, the message is that one can never know what a px will be, even in the absence of bugs. |