CSS WG Blog – Minutes and Resolutions TPAC 2011-10-30 Sunday Afternoon: UTR50, radial-gradient(), Exclusions and Shapes, Style Attr, Selectors 4, Paginated Layout on Screen

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, the Future of CSS syndicator, and the issue list on Github.

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.

Minutes and Resolutions TPAC 2011-10-30 Sunday Afternoon: UTR50, radial-gradient(), Exclusions and Shapes, Style Attr, Selectors 4, Paginated Layout on Screen

By fantasai December 2, 2011 (Permalink)
Categories: resolutions

Vertical Text Layout

John Daggett summarized what Unicode is doing with UTR 50, which will define the default orientation of each character in vertical text. Those interested are encouraged to review the draft and send Unicode comments: Unicode Technical Report #50

Gradients

Resolved: Stick with current set of features for radial-gradient().

Exclusions and Shapes

Rossen presented the current Exclusions and Shapes draft. Two major concerns were raised:

Error accumulation vs. performance in cases where there is a cyclic dependency between the position/size of the exclusion and the surrounding content it affects. (For example, when the exclusion is centered or otherwise referencing the bottom edge, actually getting the position right would require multiple-pass layout. The current spec limits it to two passes, which will give wrong results in many cases.)
Fluidity of the layout with respect to different amounts of content, different font sizes, different page sizes, etc. The feature seems to be designed assuming everything will always fit, and the examples make much use of fixed-size boxes.

Resolved: Publish FPWD of Exclusions

Minutes and Resolutions TPAC 2011-10-30 Sunday Afternoon II: Style Attr, Selectors 4, Paginated Layout on Screen

Style Attributes

Resolved: Publish Style Attribute PR as soon as we have the implementation reports.

Selectors 4

Daniel raised some concern that web designers are assuming everything in Selectors 4 will make it to CR, even though it’s a very early stage draft and we don’t know what will make it and what not. (The ability to select ancestors of elements is a particular area of concern since it is difficult to optimize for CSS selection in dynamic environments.)

Paginated Layouts (GCPM)

Håkon presented a demo of a new paginated layout feature in Opera: it uses the overflow properties to switch the UA into a paginated mode. The demo also included some new features for UI to link independent documents together into a single paged presentation.

Full Minutes Part I Full Minutes Part II

« Previous article Next article »