- From: L. David Baron <dbaron@dbaron.org>
- Date: Mon, 2 Jun 2008 16:56:34 -0700
- To: "REFSTRUP,JACOB (HP-Vancouver,ex1)" <jacob.refstrup@hp.com>
- Cc: "www-style (www-style@w3.org)" <www-style@w3.org>
On Wednesday 2003-07-23 20:44 -0400, REFSTRUP,JACOB (HP-Vancouver,ex1) wrote:
> I had a question around opacity and rgba and their interaction based on the
> CSS3 Color module. Suppose the following style sheet:
>
> span {
> color: rgba(100%,0,0,0.5);
> opacity: 0.1
> }
>
> Does both "alpha" values apply? I.e. would the text inside a span render
> with an effective opacity of 0.05 onto its parents element?
I managed to find this comment despite its lack of the string
"css3-color" (which is in the spec's URL).
Both alpha values do apply (but through different mechanisms).
This is tested in the test suite:
http://dev.w3.org/CSS/css3-color-test-suite/src/t32-opacity-offscreen-with-alpha-c.xhtml
I don't think any change to the specification is needed. It
describes the two features independently, since they are in fact
independent.
-David
--
L. David Baron http://dbaron.org/
Mozilla Corporation http://www.mozilla.com/
Received on Monday, 2 June 2008 23:57:16 UTC