[csswg-drafts] [css-ui-3]Does `<fieldset/>` is a replaced element or other extra behaviour?

Nadya678 has just created a new issue for https://github.com/w3c/csswg-drafts:

== [css-ui-3]Does `<fieldset/>` is a replaced element or other extra behaviour? ==
I found problems with `<fieldset/>` element. This occured also on one of my websites and it cannot be removed with any style. Only change to non-semantic `<div/>` helps me.  

Does any draft describe this behaviour? Please look on Cr and FF behaviour. 
http://jsfiddle.net/mbgyem8b/

Moz and Cr do have reported this bug (?) many time but on Moz there is status "unconfirmed" or "closed+resolved" and wont-fix. Multiple duplication of this problem (resolved+duplicated).

Can you please add note in new drafts that the `<fieldset/>` is not a "replaced element" and all CSS styles should work for it like for `<div/>` and `<section/>`?

**ONLY MSIE** shows the element correctly if no extra behaviour is provided. 


Please view or discuss this issue at https://github.com/w3c/csswg-drafts/issues/2178 using your GitHub account