172584 - overflow: auto or scroll affects box height

Status: RESOLVED DUPLICATE of bug 145212

(Core :: Layout, defect)

Description

[Tomasz Ostrowski]

When 'overflow' property in a box (for example 'div') is set to
'scroll' or 'auto' it affects this box height.

With overflow 'auto' vertical scrollbar should never be visible if neither          
box nor any of its parent boxes have no height property - it should
simply get it's automatic height based on it's contents.

With overflow 'scroll' it should be visible according to CSS2 standard,
but it should not ever change computed box height.

Comment 1

[Tomasz Ostrowski]

Attachment: Testcase with 3 divs containing the same text but different overflow properties

Comment 2

[Boris Zbarsky [:bzbarsky]]

Roc fixed this a few days back.  Got a bug number to dup to?

Comment 3

[Robert O'Callahan (:roc) (email my personal email if necessary)]

> it should not ever change computed box height.

Not quite. With overflow:scroll, we have to make the box bigger than the content
to make room for the scrollbar(s).

This bug is indeed fixed. Try today's build.

*** This bug has been marked as a duplicate of 145212 ***