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Re: [css3-multicol] Nested multicolumn elements rendering

From: Gérard Talbot <www-style@gtalbot.org>
Date: Thu, 8 Aug 2013 20:03:02 -0400
Message-ID: <fa99dd4a3b76ce286e88002288ea48ae.squirrel@ed-sh-cp3.entirelydigital.com>
To: "Morten Stenshorne" <mstensho@opera.com>
Cc: "www-style mailing list" <www-style@w3.org>

Le Jeu 8 août 2013 17:13, Morten Stenshorne a écrit :
> "Gérard Talbot" <www-style@gtalbot.org> writes:
>> Le Jeu 8 août 2013 5:54, Morten Stenshorne a écrit :
>>> "Gérard Talbot" <www-style@gtalbot.org> writes:
>> Morten,
>> I've created your test (I have set the inner multi-column to
>> 'column-fill:
>> auto' to make it a bit easier to figure out and added colored borders)
>> and
>> uploaded here:
>> http://www.gtalbot.org/BrowserBugsSection/CSS3Multi-Columns/Opera/Nested-multicol-M-Stenshorne.xht
> Nice. With the inner column-fill:auto you added, though, I wonder why
> the inner multicol is still forcefully balanced, testing with Presto. It
> has a nice known outer column height to fill. Perhaps IE has got it
> right, but I cannot test that browser right now.

I've asked Hakom a similar question on July 21st and he answered:

If height [of a multi-column element] is auto, [then column-fill:] 'auto'
and [column-fill:] 'balance' should produce the same result.

There are some relenvant discussions around here:


and this is the case for the inner multi-column element of your test.

> I would expect:
> aaa      eee    | iii
> bbb      fff    | jjj
> ccc      ggg    | kkk
> ddd      hhh    | lll
>>> Ah, an opportunity for my daily Ahem rant... :)
>>> Ahem makes text unreadable! (well, duh)
>> This is in fact a good comment. I think we would be ready to create a
>> customized-for-CSS-test-purposes font where glyphs (of latin alphabet:
>> a,
>> b, c, etc.) would be recognizable and where, just like Ahem font, the
>> descender space, ascender space, em dimensions, etc.. would be entirely
>> reliable and entirely predictable.
> That would be cool. I suppose you'd still have to fight with
> anti-aliasing differences,

Yes, that's possible.

> but at least the layout would be
> predictable. And readable. :)

It would ease webpage debugging, test reviewing, etc.

>>> Rather than using Ahem in the test, you could set line-height and only
>>> use explicit line breaks, and not provide any automatic line break
>>> opportunities (avoid white-space altogether, or set
>>> white-space:nowrap). Then it would be easier see the "mmm"s and so
>>> on. :)
>> I'll take into consideration your idea for future tests here.
>> This is how most of the Opera tests have been doing.
>> Morten, thank you again for your extremely useful feedback.
> Glad to help, and thanks for taking interest in multicol!



> --
> ---- Morten Stenshorne, developer, Opera Software ASA ----
> ------------------ http://www.opera.com/ -----------------

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