W3C home > Mailing lists > Public > www-style@w3.org > January 2013

Re: [css3-positioning] "Top layer" for positioned elements?

From: Simon Sapin <simon.sapin@kozea.fr>
Date: Thu, 17 Jan 2013 08:44:17 +0100
Message-ID: <50F7ABD1.6090209@kozea.fr>
To: "Tab Atkins Jr." <jackalmage@gmail.com>
CC: www-style list <www-style@w3.org>
Le 17/01/2013 05:10, Tab Atkins Jr. a écrit :
> When positioned in the top layer, the element
> breaks out of any containing contexts, including pseudo-stackign
> contexts like 'opacity'.

This sounds like `position: fixed`.

> (I'm unsure of whether this means they
> *won't*  be affected by an ancestor's opacity/filter/etc, or if it'll
> be affected independently from the rest of the group they were
> originally in.  I suspect the former makes more sense and has better
> use-cases, and can perhaps be defined precisely in terms of "effects
> that create a pseudo-stacking context".)

Now that you mention this, I wonder how fixedpos is supposed to work 
when an ancestor creates a stacking context because eg. of opacity.

Simon Sapin
Received on Thursday, 17 January 2013 07:44:42 UTC

This archive was generated by hypermail 2.4.0 : Monday, 23 January 2023 02:14:23 UTC