• https://www.w3.org/2018/10/TPAC/
• full TPAC week is 22-26 October 2018
• CSS WG meeting days are Mon-Tue 22-23 from 9am to 6pm
• Houdini meeting is Thu 25 October from 09:00-???
• Lyon, France at the Lyon Convention Center
• Monday night developer meetup (requires registration)
• Jiminy Panoz, a Lyon resident (and friend of EPUB and CSS), has posted a guide to Lyon for TPAC attendees

Please, put your name in this table if you plan to participate (alphabetical order by given name):

Regrets:

- …

See also the current https://www.w3.org/2002/09/wbs/35125/TPAC2018/registrants [member-only].

(9am schedule wrangling and introductions)

• Accessibility API Mappings (https://w3c.github.io/html-aam/) - What it is, how it matters to CSS, when we need to ping a11y people about implications. Focus on display:contents being unexpectedly troublesome. – Alice Boxhall
• Identify new people to represent the CSSWG in the CSS a11y task force
• [css-break-4] control space before element depending on page position: https://github.com/w3c/csswg-drafts/issues/253

10am - Break

• [css-align] gap properties for block layout: https://github.com/w3c/csswg-drafts/issues/3068
• css-multicol
  • What happens to the mbp of the empty fragment created by a spanner being first-child of an element: https://github.com/w3c/csswg-drafts/issues/2552
  • Margin collapsing does not make sense with column-spans: https://github.com/w3c/csswg-drafts/issues/2203
  • Improve column-fill and make it backward-compatible: https://github.com/w3c/csswg-drafts/issues/3224

• Css-text-3:
  • Revisit text-align shorthanding text-align-last: https://github.com/w3c/csswg-drafts/issues/3117
  • word-wrap/overflow-wrap: break-word should affect min-content https://github.com/w3c/csswg-drafts/issues/2682
• Text-4
  • Allow letter-spacing to have unitless values like line-height: https://github.com/w3c/csswg-drafts/issues/2165
  • [css-text-4] Text-spacing is too strict

12pm - Lunch

• [css-flexbox] Investigate applying align-content to single-line flex containers: https://github.com/w3c/csswg-drafts/issues/3052

• Initial Letter Layout Model and other CSS Inline Layout Issues (could this happen Monday? –dauwhe)
  • Should first/last baseline values of `vertical-align` belong to `alignment-baseline` or separate longhand? https://github.com/w3c/csswg-drafts/issues/861
  • better name for initial-letters property: https://github.com/w3c/csswg-drafts/issues/2950

• Css-overflow-3
  • Intrinsic sizing of elements with continue:discard https://github.com/w3c/csswg-drafts/issues/3214
  • Define the behavior of overly long block ellipsis strings https://github.com/w3c/csswg-drafts/issues/3213
  • block-overflow, ::first-line, and ::first letter https://github.com/w3c/csswg-drafts/issues/2906
  • Allowing (or not) alternate ellipsis behavior for block-overflow https://github.com/w3c/csswg-drafts/issues/2905

3pm - Joint meeting with the Math on Web Pages CG

• vertically align to nth-child: https://github.com/w3c/csswg-drafts/issues/1339

3:30pm - break

4pm - Joint meeting with WPT

• Scroll-linked Animations - Spec is on WICG and Blink now has a partial experimental implementation (majidvp@ can demo). Gathering status and see if there is interest in moving it (or a subset) forward.

• CSS-UI
  • fieldset/legend (https://github.com/w3c/csswg-drafts/issues/3094)—Florian
  • Dark mode and native form controls (discussion)—fremy
  • Should we define outline more tightly and aim for close interop, or leave it open to UI innovation? (see 3184 for a recent example, but also the spec is full of “may”)—Florian

(start at 9am - the room will be occupied until then)

• Spatial Navigation — Jihye and Florian (prefers Tuesday, not during AC meeting, definitely avoid Monday early afternoon and avoid from 5pm Tuesday)
• css-fonts-4
  • src: local() font unique name matching ambiguous & restricts matched locale https://github.com/w3c/csswg-drafts/issues/3177
• [css-overscroll-behavior] Moving spec to FPWD. This was recently migrated from WICG.
• aspect-ratio draft proposal: https://drafts.csswg.org/css-sizing-4/#ratios

10am - Break

• [css-shadow-parts] confirm browser support (Tuesday): https://github.com/w3c/csswg-drafts/issues/2368

11am - Joint meeting with i18n

• Propose adding lang as a font-face descriptor ideally with I18n Core
• [css-logical] Flow-relative syntax for `margin`-like shorthands: https://github.com/w3c/csswg-drafts/issues/1282

12pm - Lunch

• Environment Variables spec - path to fpwd?
• Constructable Stylesheets (Tuesday) – Rakina & Eric & Tab
  • Can the same constructed stylesheet be used in two different Documents?
  • Need to define what fetch groups various loads from the sheet go in
  • Can we use CSSStyleSheets from <style>/<link> in adoptedStyleSheets?
  • Should we use FrozenArray instead of StyleSheetList for adoptedStyleSheets
  • Should this spec move from WICG to CSS WG?
  • Blink is interested in shipping.
• CSS-UI
  • Path forward for the appearance property (https://github.com/w3c/csswg-drafts/issues/3024)—Florian

3:30pm - break

• Scrollbar Styling - FPWD, experimental implementation(s), and maybe even demo(s)?
  • getComputedStyle and scrollbar-color
• Effect of filter element on root element https://github.com/w3c/fxtf-drafts/issues/282 –chrishtr
• backdrop-filter spec issues: https://github.com/w3c/fxtf-drafts/issues/53
• Text-decoration
  • text-underline-offset
  • Rename text-decoration-width?
• [CSS-cascade] import only in moment when we need it: https://github.com/w3c/csswg-drafts/issues/3050
• [css-conditional-4] selector() feature query function for selector support: https://github.com/w3c/csswg-drafts/issues/3207
• [selectors4] Name the “functional pseudo-class like :matches() with 0 specificity”: https://github.com/w3c/csswg-drafts/issues/2143

Houdini