It could be a bug, but it's never happened to me in my fairly extensive texting of EPUB export from InDesign CS5.5 using Adobe Digital Editions 1.7.2.
Mac or Windows? What version of ADE? Does this happen with all files or only one file?
Hmmn - all non-zero measurements in CSS must have a unit specified. What I'd be expecting to see here would be 1.2em, which is the default on ePub export from InDesign based on the Basic Paragraph style.
I'm very curious - is there any chance you could PM me a link that I could have a look at a sample file, please?
Actually it is not happenning always, so I am trying now finding a pattern of files where this always happens.
I use ADE 188.8.131.521 , InDesign 7.5.0 (MacOS)
The templates I use is typical single page or spread with Master Textframe, more than 50 pages, with TOC and EPUB splitted according to TOC, etc...
Now I tried to make a simplest 2 pages EPUB with styles and works fine
Let me dig deeper and will keep you updated. Thanks folks !
You should upgrade to InDesign CS 7.5.2 before you do your testing. There were some EPUB problems fixed with the 7.5.1 and 7.5.2 updates.