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Re: [css-background] Animating border-position

From: Tab Atkins Jr. <jackalmage@gmail.com>
Date: Thu, 19 Dec 2013 13:43:22 -0800
Message-ID: <CAAWBYDCf+XRmTrbPa4K3=07UV9SvEt3vvBL7RG-_YZ90e8RChQ@mail.gmail.com>
To: Alan Stearns <stearns@adobe.com>
Cc: fantasai <fantasai.lists@inkedblade.net>, www-style list <www-style@w3.org>, "L. David Baron" <dbaron@dbaron.org>
On Thu, Dec 19, 2013 at 11:46 AM, Alan Stearns <stearns@adobe.com> wrote:
> On 12/18/13, 3:53 PM, "fantasai" <fantasai.lists@inkedblade.net> wrote:
>>I've updated the spec's Computed Value line to be
>>   | A list, each item consisting of: a pair of offsets (horizontal
>>   | and vertical) from the top left origin each given as a
>>   | combination of an absolute length and a percentage.
>>
>>I think in combination with dbaron's text for the Animatable line,
>>this should be sufficient. (Though dbaron might have some suggestions
>>for wording improvement...)
>
> I’m trying to figure out how this works with the future-proofing ideas
> from Tab’s proposal. For now, we assume the canonical origins are top,
> left. But if we add logical origins, they would then be added as an
> override to the top, left assumptions in the computed value?

If we also allow logicals, then it would be *either* a pair of
physical offsets or a pair of logical offsets (or a pair of page
offsets, etc).  Then animating only works if you have the same type of
offsets.

~TJ
Received on Thursday, 19 December 2013 21:44:09 UTC

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