Re: [css-line-grid][css-books] opt-in or opt-out? (was one property or more?

Never mind, the inheritance you mentioned in the original thread convinced me that these issues—fewer or not, or opt-in or opt-out—are not really an issue here.

I now agree with two separate properties for the inheritance to work properly.


On Oct 3, 2014, at 15:09, Koji Ishii <> wrote:

> On Oct 3, 2014, at 10:10, Alan Stearns <> wrote:
>>>> [1]
>>> Not sure which picture in the blog post you think is common
>> Either of the last two are valid ways to set headings in Latin. What you
>> need to avoid is line snapping everything [4].
> Agreed, but that doesn’t explain which is fewer, or whether opt-in or opt-out is better strategy. I agree with Håkon that by default all to snap and author specify what not to is better.
>>> having blocks align to the grid looks natural to me, and matches to what
>>> East Asians do[2]. If that’s the case, wouldn’t it be more appropriate to
>>> say there are more elements to snap than not to?
>> The more or less elements argument was applied to the use of line snapping
>> - both drafts use a separate property for box/block snapping. So adding
>> more box-snap elements isn’t that relevant to the question of whether we
>> should have one or two properties for establishing a grid and turning on
>> line snapping.
> You’re right, I was discussing whether to opt-in or opt-out, so changed the subject.
>>> I can’t really speak of Latin typography better than you, but please keep
>>> in mind that, at least in East Asia, authors would want almost every
>>> element to snap, except headings and pictures as blocks to snap (see Fig.
>>> 4.20 for when headings are of multiple lines[3].)
>>> [2]
>>> [3]
>> Right - Fig 4.20 shows a heading that box snaps and deliberately does
>> *not* line snap. That’s quite similar to the examples I give in my blog
>> post, though the box snap setting used will likely be different for
>> different scripts.
> As Christoph said, I’m not convinced that only few elements snap. I don’t want authors to make a list of “p, div, dl, dd, dt, ol, ul, li, …” in every styesheet.
> One possible idea is to make everything snap by default, with:
> * line-snap if the computed line-height is the same as the line-height of the element that created the grid, and
> * box-snap otherwise.
> Authors can further specify specific elements to behave differently, but I think that’d be a reasonable default for most of daily use cases.
> Does this suffice both of requirements?
> /koji

Received on Tuesday, 7 October 2014 09:50:48 UTC