[Bug 22474] New: Percentage top and bottom property does not always refer to the height of containing block

https://www.w3.org/Bugs/Public/show_bug.cgi?id=22474

            Bug ID: 22474
           Summary: Percentage top and bottom property does not always
                    refer to the height of containing block
    Classification: Unclassified
           Product: CSS
           Version: unspecified
          Hardware: All
                OS: All
            Status: NEW
          Severity: normal
          Priority: P2
         Component: CSS Level 2
          Assignee: bert@w3.org
          Reporter: curvedmark@gmail.com
        QA Contact: public-css-bugzilla@w3.org

>From http://www.w3.org/TR/CSS21/visuren.html#position-props
the spec says:

> <percentage>
>         The offset is a percentage of the containing block's width (for 'left' or 'right') or height (for 'top' and 'bottom').

But test case http://jsbin.com/ocadip/18/edit show that for all major browsers,
when a relatively positioned box is inside an absolutely positioned box, it's
percentage top property resolves to zero.

>From the discussion at
http://lists.w3.org/Archives/Public/www-style/2013Jun/0473.html it appears that
if a relatively positioned box's containing block doesn't have an explicitly
specified height value the top and bottom property of that relatively
positioned box, if they are of a percentage value, should compute to zero,
which works much like the height property.

So I think the spec should at least mention that.

-- 
You are receiving this mail because:
You are the QA Contact for the bug.

Received on Wednesday, 26 June 2013 13:10:14 UTC