Re: [css-ui-3] box-sizing: padding-box

On Mon, Jun 22, 2015 at 1:33 PM, Florian Rivoal <florian@rivoal.net> wrote:
>> On 22 Jun 2015, at 22:10, Tab Atkins Jr. <jackalmage@gmail.com> wrote:
>> On Mon, Jun 22, 2015 at 12:50 PM, Florian Rivoal <florian@rivoal.net> wrote:
>>>> On 22 Jun 2015, at 21:40, Jonathan Kingston <jonathan@jooped.com> wrote:
>>>>
>>>> However could I ask if there was a reason margin-box was never considered?
>>>
>>> It was considered. I've been through the archives of the www-style recently, and there were about 2 or 3 discussions during the last 15 years on this topic.
>>>
>>> The conclusion was that it was possible, but that there was not enough demand / not enough use cases to
>>> justify specifying, writing tests, implementing, etc...
>>
>> Importantly, margin-collapsing makes it very unclear exactly what the
>> bounds of your margin box are.  Solving this is tricky, and unlikely
>> to always (or even often) be what is wanted.
>
> I don't think that's true. It might be somewhat counter-intuitive, but there's no particular difficulty in defining what it would do.
>
> See Hixie debunking this point 16 years ago: https://lists.w3.org/Archives/Public/www-style/1999Nov/0037.html

That's *an* answer, yes.  It's not clear that it's the best answer,
just that it's probably the simplest.

~TJ

Received on Monday, 22 June 2015 21:04:38 UTC