W3C home > Mailing lists > Public > www-style@w3.org > October 2001

Re: Proposal: box-shadow

From: Chris Lilley <chris@w3.org>
Date: Tue, 02 Oct 2001 20:58:17 +0200
Message-ID: <3BBA0E49.858D4174@w3.org>
To: Etan Wexler <ewexler@stickdog.com>
CC: Web style list <www-style@w3.org>


Etan Wexler wrote:
> 
> Bert Bos wrote:
> 
> > Bjoern Hoehrmann writes:
> >
> >> The box-shadow property
> >>
> >>   Name:            box-shadow
> >>   Value:           none | [ <length> <length> <color>? ]
> >>   Initial:         none
> >>   Applies to:      all block-level elements
> >>   Inheritet:       no
> >>   Percentages:     N/A
> >>   Media:           visual
> >>   Computed value:  specified value (except for 'inherit')
> >
> > I like it and I'll propose it to the CSS WG ...
> 
> I suggest that we add an optional blur radius component and the
> possibility of multiple shadows, as with 'text-shadow':
> 
> Value:        none | <shadow> [ , <shadow> ]*
> 
> where <shadow> is
> [ <length> <length> <length>? <color>? |
>   <color> <length> <length> <length>? ]
> 
> If the box-shadow color is left unspecified, should it take the
> computed value of the element's 'color' property?

I suggest that the existing 'filter' property from the SVG 1.0
Recommendation can already do the box shadow, the blurred drop shadow,
the multiple colored blured drop shadow, the text shadow, and so forth
plus many, many other things without coming up with a keyword or
property for each canned effect. 

It is significantly more configurable than the methods proposed here,
and also is very well documented in terms of precise, interoperable
rendering and already implemented several times.

'filter' 
      Value:       <uri> | none | inherit
      Initial:     none
      Applies to:  container elements and graphics elements
      Inherited:   no
      Percentages: N/A
      Media:       visual
      Animatable:  yes

http://www.w3.org/TR/SVG/propidx.html
http://www.w3.org/TR/SVG/filters#FilterProperty
http://www.w3.org/TR/SVG/filters.html#feGaussianBlur

-- 
Chris
Received on Tuesday, 2 October 2001 14:58:25 GMT

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