305735 - Overlapping table cells in XHTML

Status: RESOLVED DUPLICATE of bug 33988

(Core :: Layout: Tables, defect)

Description

[Yuh-Ruey Chen]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.7.10) Gecko/20050716 Firefox/1.0.6
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.7.10) Gecko/20050716 Firefox/1.0.6

This is the same as bug 62530 except specific to XHTML.  In summary, incorrect
XHTML involving rowspan and colspan attributes can lead to overlapping table cells.

Although this behavior is fine for HTML, the latest CSS 2.1 draft indicates that
this shouldn't occur in an XHTML document
(http://www.w3.org/TR/2005/WD-CSS21-20050613/tables.html#q7).  Under the diagram
in that section is this: "on the right, the only possible formatting of a
similar XHTML table", which leads me to believe that this section applies to XHTML.

However, the spec is otherwise ambiguous on this matter.  On this page
(http://www.w3.org/TR/2005/WD-CSS21-20050613/images/longdesc/table-overlap-desc.html)
that describes the problem, I don't see any distinction between HTML and XHTML.

Reproducible: Always

Steps to Reproduce:
Example from the CSS 2.1 spec:
<table>
<tr><td>1 </td><td rowspan="2">2 </td><td>3 </td><td>4 </td></tr>
<tr><td colspan="2">5 </td></tr>
</table>
Actual Results:  
table cells overlapped

Expected Results:  
table cells shouldn't overlap regardless of correctness

Comment 1

[Yuh-Ruey Chen]

Attachment: testcase from CSS 2.1 spec

Comment 2

[Mats Palmgren (inactive)]

*** This bug has been marked as a duplicate of 33988 ***