130767 - table content computed differently than div content.

Status: RESOLVED FIXED

(Core :: Layout, defect, P3)

Description

[Sean Proctor]

tables has set:
border-style: none;
padding: 0;
margin: 0;
width: 100%;
div has set:
nothing that should affect this

sometimes the table and div line up (ie have the save width), sometimes they
don't.  (if I up'ed my resolution they lined up fine.)  I'm guessing there's a
floating point involved here someplace that is behaving differently between the
two (this is the only thing I can think of besides my code being invalid, but
I'm pretty sure my code is right).

Comment 1

[Christine Hoffman]

Changing QA contact

Comment 2

[Boris Zbarsky [:bzbarsky]]

Is this the table with the months?  Or the table of days?

Comment 3

[Sean Proctor]

both, but the first page lines up well, I've updated the URL to
http://php-calendar.sourceforge.net/php-calendar/display.php

the two tables on that page (no border, padding, margin) are wider than the div
(by 1 or 2 pixels), but if I up the resolution, they're the same width (the
reason I don't think it's a problem in my CSS).

Comment 4

[Boris Zbarsky [:bzbarsky]]

Try making the borders on both table and div much bigger (eg 20 px, not 1px or
2px).  Does that make things even worse?  Conversely, does changing the border
to 0px make things better?

Comment 5

[Sean Proctor]

increasing the border size doesn't make this any more apparent.  I would've
thought it would change things.  (there was no border originally, and setting
border-spacing: 0 doesn't get rid of the problem.)  perhaps tables are rendered
differently than divs, but I thought having a border, etc with width: 100% would
cause the content to be the width of the containing block, not the entire table
to be the width of the containing block.  I've left the borders at 20px if you'd
like to see.  also setting the borders to 0px does not remove the issue.

Comment 6

[Adam Katz]

Attachment: two boxes, a DIV and a TABLE, should be equal width

shows just the bug.
the bug is in rendering the following:
body { padding: 0, 2%; }

Comment 7

[Adam Katz]

also seeing bug on win2k build 2002031104 and linux build 2002031121
please change OS from Windows NT to All, I don't have permission.

Comment 8

[Sean Proctor]

I've tried to look into fixing this a little, but I don't really know where to
start.  I was looking through layout.  Any tips you can give?

Comment 9

[Boris Zbarsky [:bzbarsky]]

See how TableOuterFrame (the table) and AreaFrame/BlockFrame (the div) size
differently?

Comment 10

[Boris Zbarsky [:bzbarsky]]

bernd, could this be due to the rounding table layout does?

Comment 11

[j.j.]

Testcase wfm.

Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9a2pre) Gecko/20061231 Minefield/3.0a2pre

Comment 12

[Boris Zbarsky [:bzbarsky]]

I see the bug in a 2006-12-07-01 build but not a 2006-12-08-01 build.  Fixed by reflow branch landing, looks like.

Comment 13

[Ryan VanderMeulen [:RyanVM]]

Does this need a reftest?

Comment 14

[Boris Zbarsky [:bzbarsky]]

Yes.

Comment 15

[Ryan VanderMeulen [:RyanVM]]

Attachment: Reftests

Comment 16

[Boris Zbarsky [:bzbarsky]]

Comment on attachment 257329 [details] [diff] [review]
Reftests

You probably need an explicit "-moz-box-sizing: border-box; box-sizing: border-box" on the table to make this future-proof...

Comment 17

[Ryan VanderMeulen [:RyanVM]]

Attachment: Added border-box to table

Comment 18

[Boris Zbarsky [:bzbarsky]]

Checked in the test.  Thanks!