W3C home > Mailing lists > Public > www-style@w3.org > March 2015

Re: [css3-background] border-image dependancies on border-style and border-width

From: Brad Kemper <brad.kemper@gmail.com>
Date: Mon, 2 Mar 2015 07:07:16 -0800
Cc: "www-style@w3.org" <www-style@w3.org>
Message-Id: <3B8097A5-6DB7-42BD-932B-E56B74A4A35B@gmail.com>
To: fantasai <fantasai.lists@inkedblade.net>


> On Mar 1, 2015, at 3:42 PM, fantasai <fantasai.lists@inkedblade.net> wrote:
> 
>> On 02/28/2015 07:22 PM, Brad Kemper wrote:
>> 
>> P.S. I think it is kind of unfortunate that having 'border-style:none' changes the computed value of border-width to 0,
>> regardless of what the author sets, since I think that is why border-style has to be explicitly set in order for
>> 'border-image-width:[number]' to work. But I imagine it is way too late to change that. But could we have border-image-width
>> use the cascaded value of border-width instead of the computed value?
> 
> Well, we could make the computed value be its specified value and
> the used value be zero, but I'm not sure if that's a Web-compatible
> change. Not sure how to evaluate that either, other than to implement
> it and see what breaks...

Yeah, it might be too late. It doesn't seem super likely that people are relying on the behavior for border-image much, but maybe people are checking and setting border-width and border-style in JS and expecting them to work interchangeably at zero. It could be tested under an experimental flag, I guess, if implementors were willing. 
Received on Monday, 2 March 2015 15:07:46 UTC

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