ARXO-2026-0334 · Reported
CSS Cascade 6: §3.6 on presentational hints points to Level 5 §6.4 Cascade Layers instead of §6.5
§3.6 has no text of its own, only an issue box pointing to “CSS Cascading 5 § 6.4 Cascade Layers”. In Level 5 presentational hints are §6.5, and Level 5 moved them out of layers into their own origin (issue 6659). The other pointers of the same kind in Level 6 go to the matching Level 5 section; the Working Draft of 6 September 2024 has the same pointer in §2.6.
Consequence
A reader who follows the pointer lands on Cascade Layers, which no longer govern presentational hints.
Proposed correction
Point §3.6 to Level 5 §6.5 Precedence of Non-CSS Presentational Hints.
- Issued by
- World Wide Web Consortium (W3C) — CSS Working Group
- Act
- CSS Cascading and Inheritance Level 6 (Editor's Draft, 28 April 2026)
- Place
- §3.6
- Record
- Discrepancy
- Class
- Text of the act
- Where it arose
- The text of the act
- Arxo's conclusion
- Confirmed
- Official text
- Unchanged at last check
- Last checked
- 2026-10-31
Evidence
Contradiction within the text. Quotations are verbatim from the official material; translations are ours and marked.
CSS Cascading 5 § 6.4 Cascade LayersDefined presentational hints to use the author presentational hint origin instead of layers, matching update to [CSS-CASCADE-4]. (Issue 6659)
How to check it without Arxo's tools
- Open CSS Cascading and Inheritance Level 6, Editor's Draft of 28 April 2026 (W3C CSS Working Group) and find §3.6 Precedence of Non-CSS Presentational Hints. Compare the text with the quotation above. A copy is kept in this register: 6d3da5b4b2077a16-ed-css-cascade-6.html (SHA-256
6d3da5b4b2077a16b70b1fc38967bca88c41f1f9fd85aba223e4ae2525953e3c, copy of the official file). - Open CSS Cascading and Inheritance Level 5, Editor's Draft of 13 April 2026 (W3C CSS Working Group) and find Changes, Issue 6659. Compare the text with the quotation above. A copy is kept in this register: 2c51fc71d5bfec21-ed-css-cascade-5.html (SHA-256
2c51fc71d5bfec21aee9acf5004344fc0b5197db31fc48a1ae5373f3fbc4670f, copy of the official file). - The finding holds if the quoted passages read as shown and the comparison gives the result stated at the top of this page. If it does not, write to us with the record ID.
How this finding was made
AI agents read the specifications and compared their sections. An AI coordinator checked the place against the full Editor's Draft and the Working Group's issue tracker, and two further AI models checked the report before filing.
Responsible institutions
- W3C CSS Working Group — maintains the specification
Reported to
| Date | Institution | Channel | Reference |
|---|---|---|---|
| 2026-10-31 | W3C CSS Working Group | public issue tracker | https://github.com/w3c/csswg-drafts/issues/14705 |
Responses
No response recorded.
History
- 2026-10-31Confirmed by Arxo
- 2026-10-31Entered in the register
- 2026-10-31Reported to W3C CSS Working Group (public issue tracker)
Cite this record
Arxo Law, Arxo Findings Register, ARXO-2026-0334, https://arxo.io/findings/ARXO-2026-0334/ (status as of 2026-10-31). Data: ARXO-2026-0334.json.