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Re: Name for default value of border-color needed

From: Kishore Kulkarni <kulkarni@pathcom.com>
Date: Wed, 22 Sep 1999 21:12:23 -0400
Message-ID: <008901bf0560$b25557c0$6491fad1@kulkarni.pathcom.com>
To: "www-style" <www-style@w3.org>, "Tantek Celik" <tantek@cs.stanford.edu>
Cc: "L. David Baron" <dbaron@fas.harvard.edu>, <cwilso@microsoft.com>, "www-style" <www-style@w3.org>
Kartik is not on this email anymore.  Please do not send any mail to
kulkarni@pathcom.com

-----Original Message-----
From: Ian Hickson <py8ieh@bath.ac.uk>
To: Tantek Celik <tantek@cs.stanford.edu>
Cc: L. David Baron <dbaron@fas.harvard.edu>; cwilso@microsoft.com
<cwilso@microsoft.com>; www-style <www-style@w3.org>
Date: Wednesday, September 22, 1999 5:12 PM
Subject: Re: Name for default value of border-color needed


>On Wed, 22 Sep 1999, Tantek Celik wrote:
>>> Now, suppose the above rule is instead:
>>>
>>> DIV {
>>>   border: medium solid;
>>>   }
>>>
>>> The first two statements above are still true. However, the
>>> following must equal something (and it shouldn't be the empty
>>> string because that means the property was not set in the ruleset):
>>>    rs.style.getPropertyValue("border-color")
>> No, empty is exactly correct. Not setting the border-color means
>> that the border gets its color from the 'color' property.
>
>No, not setting the 'border-color' property means that it gets
>whatever the cascade gives it. Which (if no rule involves any of the
>'border-*-color' properties) means the initial value ("use the value
>of the 'color' property)).
>
>> And yes, that does mean that the property was not set in the ruleset
>> which is also correct.
>
>But 'border: solid medium' _does_ set the border-color property -- it
>sets it to its initial value, which is "use the value of the 'color'
>property". Take this example:
>
>   DIV { border-color: red; color: green; }
>   DIV { border: solid medium; }
>
>The color of a DIV's border should be green, because the above expands to:
>
>   DIV { border-color: red;
>         color: green; }
>   DIV { border-style: solid;
>         border-width: medium;
>         border-color: <initial-value>; }
>
>So, after the cascade is applied, DIV gets:
>
>   DIV { color: green;
>         border-style: solid;
>         border-width: medium;
>         border-color: <initial-value>; }
>
>...because the first 'border-color' declaration gets cascaded out.
>(There is an example of this at the foot of chapter 8.)
>
>If 'border-color' is "not set in the ruleset", then the value of
>border-color would come from the first rule, i.e., be red. This is not
>what is supposed to happen, so clearly 'border-color' _is_ set. The
>problem is that there is no keyword representing that value.
>
>--
>Ian Hickson
>: Is your JavaScript ready for Nav5 and IE5?
>: Get the latest JavaScript client sniffer at
>: http://developer.netscape.com/docs/examples/javascript/browser_type.html
>
>
>
Received on Wednesday, 22 September 1999 21:06:04 GMT

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