CSS WG Blog front page

This is a page from the Cascading Style Sheets Working Group Blog. Some other places to find information are the “current work” page, the www-style mailing list, and the Future of CSS syndicator.

Do you want to know how the CSS WG works? Fantasai has written about:csswg, An Inside View of the CSS Working Group at W3C.

CSS Custom Properties for Cascading Variables LCWD updated!

By Tab Atkins Jr. May 6, 2014 (Permalink)
Categories: Uncategorized

The CSS Working Group has published an updated Last Call Working Draft of CSS Custom Properties for Cascading Variables (colloquially known as “CSS Variables”). This specification defines custom properties, which are author-defined properties which can accept any value, and the var() function, which lets authors substitute the value of a custom property into another property.

This new Last Call draft has been published because there have been significant changes to the syntax of custom properties and how they are used in the var() function—rather than defining custom properties with names like “var-foo”, they now have names like “–foo”, to be consistent with the plan for other custom extensions to CSS. The CSSVariablesMap interface has also been dropped, in the expectation that a future module extending the concept of custom properties will define something more useful.
Changes since the last Working Draft are listed in the Changes section.

As always, please send feedback to the (archived) public mailing list www-style@w3.org with the spec code ([css-variables]) and your comment topic in the subject line. (Alternatively, you can email one of the editors and ask them to forward your comment.)

Minutes Telecon 2014-04-30

By Dael Jackson May 1, 2014 (Permalink)
Categories: resolutions

Full Minutes

First Public Working Draft of the CSS Will-Change Module Published

By Tab Atkins Jr. April 29, 2014 (Permalink)
Categories: Uncategorized

The CSS Working Group has published a First Public Working Draft of CSS Will-Change. This module defines a single property, “will-change”, which allows the author to provide hints to the browser about what aspects of an element will change in the near future, allowing browsers to set up appropriate optimizations ahead of time, before the change occurs.

Implementation is already proceeding in Firefox and Blink-based browsers (Chrome, Opera), and this specification is expected to advanced to Candidate Recommendation quickly. Any nitpicks on the precise semantics of the property are welcome.

As always, please send feedback to the (archived) public mailing list www-style@w3.org with the spec code ([css-will-change]) and your comment topic in the subject line. (Alternatively, you can email one of the editors and ask them to forward your comment.)

Minutes Telecon 2014-04-23

By Dael Jackson April 24, 2014 (Permalink)
Categories: resolutions

Full Minutes

Minutes Telecon 2014-04-16

By Dael Jackson April 17, 2014 (Permalink)
Categories: resolutions

Full Minutes

CSS Scoping, CSS Line Grid First Public Working Draft

By fantasai April 11, 2014 (Permalink)
Categories: publications

The CSS WG has published First Public Working Drafts of two new modules:

CSS Line Grid Module Level 1
Contains CSS features for aligning content to a baseline grid.

CSS Scoping Module Level 1
Defines various scoping/encapsulation mechanisms for CSS, including scoped styles and the @scope rule, Shadow DOM
selectors, and page/region-based styling.

These are early-stage working drafts: the features described therein are not well-baked and may change dramatically or be removed. We’re soliciting comments on both design and details of these features, and implementers should participate in the design-level discussions happening on www-style before considering implementation.

As always, please send feedback to the (archived) public mailing list www-style@w3.org with the spec code ([css-line-grid] or [css-scoping]) and your comment topic in the subject line. (Alternatively, you can email one of the editors and ask them to forward your comment.)

Minutes Telecon 2014-04-02

By Dael Jackson April 3, 2014 (Permalink)
Categories: resolutions

Full Minutes

CSS Flexbox Level 1 Revision 1 Last Call for Comments

By fantasai March 28, 2014 (Permalink)
Categories: publications

The CSS Working Group has published a Last Call of CSS Flexible Box Layout Level 1 in order to gather feedback on recent changes. Flexbox is a new layout model for CSS: the contents of a flex container can be laid out in any direction, can be reordered, can be aligned and justified within their container, and can “flex” their sizes and positions to respond to the available space. This is an update to fix various problems, particularly in the layout algorithm, found through implementation review and experience during the Candidate Recommendation phase. The CSSWG is not revoking the call for implementations: we’re just issuing an LCWD to process the changes.

To help with review and with correctly updating implementations, exact diffs since the original Candidate Recommendation, and their justifications, are available in the Changes section. A Disposition of Comments is also available. The Last Call comment period ends 22 April 2014: please either send comments by then, or request an extension.

As always, please send feedback to the (archived) public mailing list www-style@w3.org with the spec code ([css-flexbox]) and your comment topic in the subject line. (Alternatively, you can email one of the editors and ask them to forward your comment.)

Minutes Telecon 2014-03-26

By Dael Jackson March 27, 2014 (Permalink)
Categories: resolutions

Full Minutes

CSS Writing Modes Candidate Recommendation

By fantasai March 21, 2014 (Permalink)
Categories: publications

The CSS Working Group has published Candidate Recommendation of CSS Writing Modes Level 3 and invites implementations. CSS Writing Modes Level 3 defines CSS handling of various international writing modes, such as left-to-right (e.g. Latin or Indic), right-to-left (e.g. Hebrew or Arabic), bidirectional (e.g. mixed Latin and Arabic) and vertical (e.g. Asian scripts).

Changes since the last Working Draft include renaming text-combine-horizontal to text-combine-upright and a handful of clarifications.

As always, please send feedback to the (archived) public mailing list www-style@w3.org with the spec code ([css-writing-modes-3]) and your comment topic in the subject line. (Alternatively, you can email one of the editors and ask them to forward your comment.) We would especially appreciate reviews of the layout rules, since they’re complex and likely to still have errors…

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Last updated 2014-12-19 21:48:54