W3C home > Mailing lists > Public > www-style@w3.org > August 2009

Re: [CSS3, border-radius] and now is real fun.

From: Brad Kemper <brad.kemper@gmail.com>
Date: Tue, 25 Aug 2009 14:41:45 -0700
Message-Id: <F5313733-CD0A-4635-A20D-A616C808171A@gmail.com>
To: Andrew Fedoniouk <news@terrainformatica.com>
Cc: "Tab Atkins Jr." <jackalmage@gmail.com>, www-style <www-style@w3.org>
On Aug 25, 2009, at 2:08 PM, Andrew Fedoniouk  
<news@terrainformatica.com> wrote:

> Tab Atkins Jr. wrote:
>> On Mon, Aug 24, 2009 at 10:13 PM, Andrew
>> Fedoniouk<news@terrainformatica.com> wrote:
>>> Following figure
>>> http://www.terrainformatica.com/w3/border-radius-transition-styles-fig.png
>>> shows two possible ways (of many) of doing
>>> transition on rounded corner between, say, border-style:inset and
>>> border-style:outset.
>>> What is better and ideologically correct? Any other ideas?
>>> Spec [1] is timidly silent about this so asking.
>>> [1] http://www.w3.org/TR/2008/WD-css3-background-20080910/#the-border-radius
>> As much as the first is *really freaking awesome*, I suspect the
>> second is better, because it can be extended to other border-style
>> transitions.
> Yeah, that is just an illustration of the fact that it is not  
> defined anywhere.
> In general each point on the curve at the corner belong to both  
> borders (or at least inherit attributes of them).
> Slightly dashed and slightly dotted sounds like "slightly pregnant"  
> for me.
> Or does CSS allow such state? If "yes" then how. If "no" then also  
> how. We cannot just be silent about it.
> If it is undefined then we need to say so clearly and to provide any  
> reasonable fall-back. I personally
> do not see any other options other than treating corner curves as  
> having solid color always.
> But that's me, AFAIR someone here said that they have a solution and
> current rendering in Mozilla is just a bug. So asking.
> -- 
> Andrew Fedoniouk.
> http://terrainformatica.com

I think the gradient blending from inset to outset looks pretty  
decent. I can also imagine dashes getting shorter and rounder to  
become dots. But I thing going from dotted to double, for instance,  
would probably need to be abrupt. To blend or not is up to the UA to  
decide, isn't it? 
Received on Tuesday, 25 August 2009 21:42:39 UTC

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