It sounds simple, but I could not find the right methode. Not offsetParent, and not parentElement, any idea?

Thanks!

You should be asking this in the js forum I think .

Also you already asked the question below and its bad manners not to reply to my answer and start a new thread with a similar question.

Didn't my previous answer satisfy you. The link on the ms site seemed to explain it all as far as I can tell. (But then js isn't my speciality - css is )

Paul