Re: [cssom-view] Origin of a canvas & scrollable element

On Fri, Oct 3, 2014 at 8:07 AM, Simon Pieters <simonp@opera.com> wrote:
> On Thu, 02 Oct 2014 22:42:41 +0200, Tab Atkins Jr. <jackalmage@gmail.com>
> wrote:
>>> How do you explain the element case?
>>
>>
>> Same deal, isn't it?  The containing block generated by an element is
>> based on the element's geometry, not its scrollable area.
>
>
> So for http://software.hixie.ch/utilities/js/live-dom-viewer/saved/3185 the
> spec says "the containing block is formed by the padding edge of the
> ancestor." and so, in my understanding, the position:absolute element should
> stay anchored to the element's padding edge when the element is scrolled,
> since the padding edge doesn't move. Is that right?

Ah, no, you want, like, the containing block, as projected into the
scrollable area's coordinate space.

~TJ

Received on Friday, 3 October 2014 14:08:48 UTC