CSSWG 3nd Virtual F2F, at TPAC 2020

TPAC Virtual Meeting is scheduled for October 2020

• 12-16 October for joint meetings with other groups (TBD groups include I18N, TTWG, APA, MathML?, SVGWG?)
• 19-23 October for our own meetings; see W3C-wide group meeting calendar
• 26-30 October is breakout week

Dial-in Logistics

Links to Meet: TBD

Schedule

October 12 (13) 17:00 UTC - Joint Meeting with Open UI

7pm - 11pm Paris
6pm - 10pm London
1pm -  5pm New York    10am -  3pm San Francisco
2am -  6am Tokyo
4am -  8am Melbourne

October 14 (15) 15:00 UTC - Joint Meeting with Accessibility (Dial-in Info)

5pm -  6pm Paris
4pm -  5pm London    11am - 12pm New York
8am -  9am San Francisco    12am -  1am Tokyo
2am -  3am Melbourne

October 15 (16) 15:00 UTC - Joint Meeting with Internationalization (using i18n dial-in info)

5pm -  6pm Paris
4pm -  5pm London    11am - 12pm New York
8am -  9am San Francisco    12am -  1am Tokyo
2am -  3am Melbourne

October 19 (20) 14:00 UTC- Joint Meeting with Color on the Web CG, Media and Entertainment IG (about HDR)

4pm -  5pm Paris
3pm -  4pm London    10am - 11am New York
7am -  8am San Francisco    11pm - 12am Tokyo
1am -  2am Melbourne

October 19 (20) 20:00 UTC - CSSWG (Dial-in)

10pm - 1am Paris 9pm - 12am London 4pm - 7pm New York 1pm - 4pm San Francisco 5am - 8am Tokyo 7am - 10am Melbourne

October 20 (21) 20:00 UTC- CSSWG (Dial-in)

10pm - 1am Paris 9pm - 12am London 4pm - 7pm New York 1pm - 4pm San Francisco 5am - 8am Tokyo 7am - 10am Melbourne

October 22 (23) 14:00 UTC- CSSWG (Dial-in)

4pm -  7pm Paris
3pm -  6pm London    10am -  1pm New York
7am - 10am San Francisco    11pm -  2am Tokyo
1am -  4am Melbourne

October 23 (24) 14:00 UTC - CSSWG (Dial-in)

4pm -  7pm Paris
3pm -  6pm London    10am -  1pm New York
7am - 10am San Francisco    11pm -  2am Tokyo
1am -  4am Melbourne

Venue tech

Meet. Details on the member-only list: TBD

We will use #css on IRC for all meeting coordination. People can use the chat in Meet for backchannel conversations, but please do not expect the meeting chairs or scribe to notice or follow that extra channel.

Participants

If you can’t make one of the days, mark any topics you want to be present for with a milestone for a day you can attend.

Agenda Schedule

Monday

Issues by milestone

• Republishing Tasks 5613
• [css-grid-1] Fix aspect-ratio errors in css-grid-1 5615
• [css-grid] Resolution of percentage row tracks and gutters with indefinite height 5566
• [css-2020] Clear ‘aspect-ratio’ for shipping 5598
• How widely should HTML’s ‘aspect-ratio’ presentational attribute be applied? 5608
• Revisiting standardization of the zoom property 5623
• Updating the css env() function to enable selection by index from a list of pre-defined environment variables 5622
• [css-values-4] Ratio of 0/0? 4954
• [cssom] [mediaqueries] Media query serialization doesn’t work for newer spec features 5627
• [mediaqueries-5] duplication of forced-colors: active and prefers-contrast: forced 5433
• [mediaqueries-5] Updating the CSS media feature syntax for foldable & dual-screen devices 5621

Tuesday

Issues by milestone

• Masonry Draft 4650
• [css-contain-2] Proposal: content-visibility: hidden-matchable 5595
• [css-contain] contain:size needs to mention its effect on aspect-ratio 5585
• [css-contain] Computed value of shortcut values 5511
• [css-contain-2] Combination of shortcuts and values 5506
• [css-contain] Terminology question 5590
• [css-sizing-4] Use cases for explicit intrinsic-size 4585
• [css-sizing-3] Why was min-content, etc. redefined to do nothing in the block axis? 3973
• [css-sizing] cyclic percentage concept should not exist 3010
• [css-sizing-3][css-images-3] Distinguish intrinsic size’s two definitions with two terms 4961
• [css-sizing-4][css-contain] Clarify on specifying aspect-ratio and contain:size on replaced elements 5550
• [css-logical-1] Interaction of shorthands and logical properties 3030

Thursday

Issues by milestone

• [css-variables][css-conditional] is trailing semicolon valid in @supports conditions 3171
• [css-conditional-3] define whether/how it matters if namespace prefixes are declared 3220
• [css-conditional-3] Are there issues with !important in @supports? (Is the grammar wrong?) 5559
• [css-color][cssom] Serialization of specified values [1004](https://github.com/w3c/csswg-drafts/issues/1004)
• [cssom][css-color] Need clarification on serialization of rgb & rgba in light of css-color-4’s syntax changes 585
• [css-images-3] Allow impls to not respect exif data if it’s after the image data 4929
• [css-images] Integrate with SVG Integration spec 4640
• [css2][css-images] Zero or infinite intrinsic ratio 4572
• [css-images] Should the values of image-orientation include the variants? [4164](https://github.com/w3c/csswg-drafts/issues/4164)
• [css-text-3][css-fonts-3][css-text-decor-3] Distinguish applying to text vs applying to boxes 5303
• [css-fonts] Reduce layout shift via @font-face descriptor(s) overriding inline spacing 5533
• [css-lists] CSS counter scope/inheritance is incompatible with HTML ordinals 5477
• [css-color] Prevent fingerprinting with deprecated system colors 3873
• [css-color-adjust] Re-add only to mean “don’t auto-adjust me”, per WebKit’s behavior 5089
• [css-color-adjust-1] Is forced color computed or used value? 4915
• [css-color-adjust-1] more granular overriding of forced colors mode than per-element 4178
• [css-color] Change three color names 5284

Friday

Issues by milestone

• [css-multicol] Containing block of column spanners 5612
• [css-grid] Resolution of percentage row tracks and gutters with indefinite height 5566
• HTML wants to mint the :modal pseudoclass for modal
  elements [4645](https://github.com/w3c/csswg-drafts/issues/4645)
• [css-logical-1] Order of inheritance vs. mapping in logical properties 3029
• [css-break-3] rules for direction to use when slicing inline borders for box-decoration-break:slice are unclear 4989
• [css-break] Specify that ink overflow doesn’t fragment? 4099
• [css-break-4] orphans and widows for fragmented monolithic replaced elements 3405
• [css-break-4] Should fragmentation of block-level replaced-elements be configurable? (“object-slice”) 3404
• [css-overflow] CSSOM scrollWidth/scrollHeight behaviour of “overflow: clip”. 5572
• [cssom-view] [css-overflow] Document.scrollingElement doesn’t reflect viewport propagation correctly in presence of overflow: clip 5601
• [css-pseudo] Problems with styling ::first-letter with punctuation 2040
• [css-display][css-pseudo] Is ::marker created by display:list-item or does it always exist? 1793
• [css-pseudo-4] ::selection vs ::inactive-selection 4579
• [css-sizing] how should inline-axis intrinsic sizing work for ‘fit-content’ and ‘fit-content()’? 3731
• Allow specifying the “accent color” of a form control element 5187 (after 9am)

Proposed Agenda

Please mark issues with the Agenda+ TPAC or Agenda+ F2F tag, and assign them to one of the TPAC-2020-* milestones if you have a preference for which day the discussion happens.

TODO: Add the full list of issues on GitHub explicitly here.

• https://github.com/w3c/csswg-drafts/labels/Agenda%2B%20F2F + https://github.com/w3c/csswg-drafts/labels/Agenda%2B%20TPAC
• https://github.com/w3c/fxtf-drafts/labels/Agenda%2B%20F2F + https://github.com/w3c/fxtf-drafts/labels/Agenda%2B%20TPAC
• https://github.com/w3c/css-houdini-drafts/labels/Agenda%2B%20F2F + https://github.com/w3c/css-houdini-drafts/labels/Agenda%2B%20TPAC
• Baseline alignment for text [myles]
• CSS Conditional 3 Are there issues with !important in @supports? (Is the grammar wrong?)
• CSS Conditional 3 define whether/how it matters if namespace prefixes are declared
• CSS Conditional 3 is trailing semicolon valid in @supports conditions
• Adopting Masonry proposal into a spec (start of Day 2, so Mats can call in)
• CSS Color 4 [Serialization of specified values](https://github.com/w3c/csswg-drafts/issues/1004) and [Need clarification on serialization of `rgb` & `rgba` in light of css-color-4's syntax changes](https://github.com/w3c/csswg-drafts/issues/585) and [Serializing color() values](https://github.com/w3c/csswg-drafts/issues/480) just to be sure before taking this out of CSSOM and fully defining in CSS Color 4, for all syntaxes, not just the rgb ones