24787 2014-02-24 20:11:52 +0000 Remaining issues for sticky positioning on CSS Positioned Layout Module Level 3 Draft 2014-02-28 01:33:12 +0000 1 1 1 Unclassified CSS Positioned Layout unspecified All All NEW http://dev.w3.org/csswg/css-position/#sticky-positioning P2 normal --- 1 sl.ostapenko dave.null corey jon.rimmer public-css-bugzilla oldest_to_newest 101264 0 sl.ostapenko 2014-02-24 20:11:52 +0000 URL: http://dev.w3.org/csswg/css-position/#sticky-positioning Issue 1: Describe which element font-size-relative units are resolved against. Issue 2: Say what happens if this rectangle is empty. Issue 3: Say what happens if it already overflows the containing block Issue 4: Do marins collapse between the stickily positioned element and its containing block element? Issue 5: Does the margin on the stickily positioned element affect its distance from the flow root edge? Issue 6: Sticky positioning should really be defined in terms of the nearest scrollable ancestor, but there is currently no such term defined elsewhere in CSS. CSSOM View refers to "scrolling boxes." CSS Overflow has yet to pull in the relevant text from CSS Box, and CSS Box has an old, confusing definition of "flow root" which is almost (but probably not quite) what we want here. This spec refers to "flow root," since that's the closest thing currently specced somewhere, but this is not optimal. 101265 1 sl.ostapenko 2014-02-24 20:21:20 +0000 From Corey's email related to his post on "www-style" mailing list: http://lists.w3.org/Archives/Public/www-style/2013Nov/0415.html "I do still think that the current spec text doesn't adequately describe how sticky positioning works. Among the issues marked in the spec draft, I think at least Issue 2 and Issue 3 are a result of these fundamental problems; the other issues could probably use a little discussion." 101587 2 sl.ostapenko 2014-02-28 01:33:12 +0000 Discussion on issue #1 : http://lists.w3.org/Archives/Public/www-style/2014Feb/0770.html