303384 - Firefox expands table over parent (DIV) even with style="height:100%;max-height:100%"

Status: RESOLVED WORKSFORME

(Core :: Layout: Tables, defect)

Description

[Vit Timchishin]

User-Agent:       Mozilla/5.0 (OS/2; U; Warp 4.5; en-US; rv:1.7.10) Gecko/20050720 Firefox/1.0.6
Build Identifier: Mozilla/5.0 (OS/2; U; Warp 4.5; en-US; rv:1.7.10) Gecko/20050720 Firefox/1.0.6

I am trying to make a scrollable column of a table. No luck - the main problem
is that page expands no matter that it get's style height:100% and even
max-height:100%. Also note that table is not in the body, but in the DIV that
has correct size (and table overflows it). Actually I am not sure if it is
height or overflow is not working.

Reproducible: Always

Steps to Reproduce:
1. Open the page provided
2. Make it not fit the screen


Actual Results:  
See table goes longer then the 

Expected Results:  
The DIV with overflow:hidded should be cropped. Or better TD with same overflow.
And in no way the table should be larger then max-height.

See the attachment

Comment 1

[Vit Timchishin]

Attachment: testcase

Comment 2

[shadytrees]

"The 'height' property on 'table' boxes is treated as a minimum height."
--http://www.w3.org/TR/CSS21/tables.html#height-layout

If I'm reading #height-layout right, height: 100% is only a minimum height, so
the 100% doesn't propagate to <table>'s children and, therefore,
overflow:hidden; never works because height:100% on the <div> is its parent's
height and there is no overflow.

Comment 3

[Vit Timchishin]

1) What about max-height. Should not table obey it?
2) 
1.7.5.3 same URL
...
The height of a 'table-row' element's box is calculated once the user agent has
all the cells in the row available: it is the maximum of the row's specified
'height' and the minimum height (MIN) required by the cells. A 'height' value of
'auto' for a 'table-row' means the row height used for layout is MIN. MIN
depends on cell box heights and cell box alignment (much like the calculation of
a line box height). Percentage heights on table cells, table rows, and table row
groups compute to 'auto'.
...
And as for me "min" for any block whose size is defined as percentage of the
parent is 0.
This means thios long cell should have min-height=0 (if not explicity stated),
and so table should be of correct size (it does not need to be longer).

Comment 4

[Mike Kaply [:mkaply]]

Not OS/2 specific.

Comment 5

[Alex]

This bug is really annoying, because it prevents me from working around bug 814985.  It's unfortunate there are so many table height calculation bugs!

Comment 6

[Frankie]

The testcase behaves exactly the same in Chrome 44 and Explorer 11.

I'd be inclined to say it's not a bug in Firefox. Maybe the W3C specification needs to be reworded.

Comment 7

[Frankie]

FF, GC, IE, Safari all render the testcase the same.