There is a CSS3 profile for the CSS validator, so just switch to
that. http://jigsaw.w3.org/css-validator/#validate_by_uri
+with_options (choose the profile) Note that much of the CSS3 spec is
not stable so many implemented properties use the vendor prefixes (-
o-, -webkit-, -moz- for example), and these will not validate. I
don't see any harm in using them, as we need usage of these properties
to see if the spec and implementations are on the right lines. The
only thing would be to make sure that the none-prefixed version is
also used so it will work when other browsers add support, and they
are used in a way that the page degrades gracefully if there is no
support (border-radius degrades gracefully as the user will just get
square corners if it isn't supported in their browser.
Opacity is supported by all major browsers (without vendor prefix)
except IE. You can use CSS filters in a IE only stylesheet (via
conditional comments for example) to add IE support.
There will be no official release of CSS3 as such. It is broken into
modules, and each module matures as it is ready. The closest we have
is the 2007 profile of CSS, which defines what is ready circa 2007.
This is CSS2.1, CSS 3 Namespaces, CSS3 Colour module and CSS3
Selectors. I'd expect CSS3 background and borders and CSS3 Media
Queries and perhaps CSS3 Web Fonts to make it in the 2008 version. http://www.w3.org/TR/css-beijing/
On 2 Oct 2008, at 16:09, Ben Lau wrote:
Hi all,
I'm having trouble deciding whether to begin coding using CSS3, such
as using (but not limited to) opacity. Although the CSS validator
returns an error, but it claims it'll be supported in CSS3. As far
as i know, FF2, FF3, Opera and Safari already renders the opacity
property, leaving Internet Explorer, which we could use alpha
properties in separate stylesheets and conditional comments. Anyone
know if IE8 supports it?
I haven't had a good look at all CSS3 properties yet, but I'm
wondering if this is a good time to code for the future? Or better
to wait for official release of CSS3?
If CSS3 is released tomorrow, what about older browsers like IE6?
Cheers,
Ben
*******************************************************************
List Guidelines: http://webstandardsgroup.org/mail/guidelines.cfm
Unsubscribe: http://webstandardsgroup.org/join/unsubscribe.cfm
Help: [EMAIL PROTECTED]
*******************************************************************
David Storey
Chief Web Opener,
Product Manager Opera Dragonfly,
Consumer Product Manager Opera Core,
W3C Mobile Web Best Practices Working Group member
Consumer Product Management & Developer Relations
Opera Software ASA
Oslo, Norway
Mobile: +47 94 22 02 32
E-Mail: [EMAIL PROTECTED]
Blog: http://my.opera.com/dstorey
*******************************************************************
List Guidelines: http://webstandardsgroup.org/mail/guidelines.cfm
Unsubscribe: http://webstandardsgroup.org/join/unsubscribe.cfm
Help: [EMAIL PROTECTED]
*******************************************************************
