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[csswg-drafts] [css-tables] Tables Fixup to-be-caused by replaced elements ignored in some browsers

From: François REMY via GitHub <sysbot+gh@w3.org>
Date: Wed, 10 Aug 2016 21:08:31 +0000
To: public-css-archive@w3.org
Message-ID: <issues.opened-170519327-1470863310-sysbot+gh@w3.org>
FremyCompany has just created a new issue for 
https://github.com/w3c/csswg-drafts:

== [css-tables] Tables Fixup to-be-caused by replaced elements ignored
 in some browsers ==
https://drafts.csswg.org/css-tables-3/#fixupAlgo --- step 3.1:
> An anonymous table or inline-table box must be generated around each
 sequence of consecutive proper table child box which are misparented.
 If the box’s parent is an inline box, then an inline-table box must 
be generated; otherwise it must be a table box. 

> A table-column box is misparented if its parent is neither a 
table-column-group box nor a table-root box. 

This is what Edge does in the following example, but not what (most?) 
other browsers do:
> https://jsfiddle.net/5cxwaopc/

I also see that all browsers seems to ignore display:table-column on 
the input, which is in direct contradiction with what CSS 2.2 stated 
(I removed the text from css-tables-3 because this clarification was 
not required as it is the normal expected behavior)
> Replaced elements with these 'display' values are treated as their 
given display types during layout. For example, an image that is set 
to 'display: table-cell' will fill the available cell space, and its 
dimensions might contribute towards the table sizing algorithms, as 
with an ordinary cell. 

> Elements with 'display' set to 'table-column' or 
'table-column-group' are not rendered (exactly as if they had 
'display: none'.

What do we want to resolve this issue to? Here are two options:
  * **```1.```** Browsers should fix the bugs. No changes to the spec 
required. There is a minor compatibility risk as the second input 
would disappear in this case (table-column ~= display:none).<br/><br/>
  * **2.** We want to ignore display:table-* on replaced elements if 
their parent is not display:table|inline-table. We can mention this as
 an effect similar to the blockification of flex/grid which happens 
before tables fixup.

Opinions?

Please view or discuss this issue at 
https://github.com/w3c/csswg-drafts/issues/398 using your GitHub 
account
Received on Wednesday, 10 August 2016 21:08:40 UTC

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