7471 - align="center" not working on COL and COLGROUP

Status: VERIFIED DUPLICATE of bug 915

(Core :: Layout: Tables, defect, P3)

Description

[ham.nguyen]

Am reporting 3 problems against Mozilla M6, both related to HTML table:

1. When a table cell is empty (i.e. containing just "<td></td>"), and table border is non-0,
Mozilla does NOT display a border around that cell, so it looks "raised flat" compared to
other cells.  Workaround: use <td>&nbsp;</td> instead.

2. HTML 4.0 has a new tag: <COL> so I can set common attributes (i.e. align="center")
for an entire column of cells.  Mozilla seems to ignore this new tag.

3. Mozilla also seems to ignore another new HTML 4.0 <COLGROUP> too, but I can't be sure.


Fyi, all 3 problems also exist in Netscape 4.6.
For comparison, MS InternetExplorer 5.0 has none of these 3 problems.

Comment 1

[David Baron :dbaron: (⌚️UTC-4, no longer working on Mozilla)]

If issue (1) is a bug report, it would be related to the default value of the
empty-cells property, which works correctly, as seen in
http://www.fas.harvard.edu/~dbaron/css/test/tborder2.html
I believe the CSS2 default value agrees with legacy behavior.  If it doesn't,
then this could be handled in quirks mode.  I haven't tested that the CSS2
initial value is the one used.

Issues 2 and 3 are valid bugs if correct.  I will make a test case.

Comment 2

[David Baron :dbaron: (⌚️UTC-4, no longer working on Mozilla)]

Attachment: Test case showing bug.

Comment 3

[David Baron :dbaron: (⌚️UTC-4, no longer working on Mozilla)]

Attachment: REVISED Test case showing bug - IGNORE FIRST TESTCASE

Comment 4

[ekrock's old account (dead)]

Marked with [TESTCASE].

Comment 5

[Hixie (not reading bugmail)]

Note that ALIGN and VALIGN on COL and COLGROUP cannot be done using CSS,
since CSS does not allow text-align and vertical-align to inherit through
table-columns and table-column-groups. This may be an issue to raise
in www-style.

Comment 6

[leger]

Spoke to karnaze during bug triage today.  Moving to M11.  Not an M10 blocker.

Comment 7

[karnaze (gone)]

Moving to M13.

Comment 8

[karnaze (gone)]

mass move to m14.

Comment 9

[ekrock's old account (dead)]

Bulk moving [testcase] code to new testcase keyword. Sorry for the spam!

Comment 10

[leger]

Putting on on PDT- radar for beta1.  Would not hold beta for this bug.  chrisd, 
please feel free to release note at:
http://bugzilla.mozilla.org/show_bug.cgi?id=25524

Comment 11

[karnaze (gone)]

Issues 2 and 3 are a duplicate of bug 915. I don't believe Issue 1 valid.

*** This bug has been marked as a duplicate of 915 ***

Comment 12

[Christine Hoffman]

Verified dup of #915