I have a issue with readium since several days, my epub appears out of pages.
Is a special tag need to be added to be compliant to the standard ?
I ran into the same problem last week, too, and found the issue logged in the bug tracker. I gather Chrome now disables CSS regions, which affects the layout. That bug report points to a blog post on the Readium site with the workaround. To quote from it:
If you are using chrome Canary or you are from the future where chrome has moved to a version in which CSS3 regions are off by default here are the steps you can take to turn them back on:
Enable CSS Regions
Once you do this, you will may also notice that readium runs smoother and has a fewer bugs. This is all product of webkit’s regions implementation becoming more mature (just as we had hoped).
So it's a readium's issue and not my epub ! Great news ! Many many thanks Matt. It running perfectly now !