- From: Etan Wexler <ewexler@stickdog.com>
- Date: Wed, 13 Apr 2005 08:38:30 -0400
- To: William Y <wyang@tjhsst.edu>, W3C CSS-Validator list <www-validator-css@w3.org>
William Y (presumably William Yang) wrote to
<mailto:www-validator-css@w3.org> on 12 April 2005 in “filter: alpha
errors” (<mid:004101c53fc6$66cbbd70$06244d0c@oemcomputer>):
> Is 'filter: alpha(opacity=85);' considered valid CSS?
It is not considered valid CSS. More importantly, it is not valid CSS.
The specifications are there for the reading. Given the inconvenience of
wading through each specification, I suggest using a search service. For
example:
<http://www.google.com/search?hl=en&q=site%3Awww.w3.org+filter+property>
> Right now, the CSS
> validator reads this as a parse error, but reads 'filter: alpha' without
> parameters fine.
In other words, given { E{filter:alpha} }, the validator responds as
follows.
Warnings
[...]
* Line : 1 property filter does not exist for
this profile, but is validated conforming to
another profile
Valid CSS information
* E {
* filter :
The lack of a value in the output is a clue that there is a bug at work.
> Do I have bad code, or is this a bug in the validator?
There is a bug in the validator. Aside from that, you have an invalid
style sheet. The style sheet’s violation of standards accomplishes a
particular effect in a particular user agent. Said user agent (Microsoft
Internet Explorer) overwhelmingly dominates the field of traditional Web
browsers. Whether you have “bad code” is a judgment “depending on your
politics” (borrowing Leonard Cohen’s turn of phrase).
--
P.S. I, too, came for the sports.
Etan Wexler.
Received on Wednesday, 13 April 2005 12:36:48 UTC