Kilotest: Diagnoses of CSS property does not exist violation by HTML element 0 on Clean Air Task Force (CATF) donate page

Basics

About the page

• URL: https://give.catf.us/campaign/756949/donate
• Tested 3 days ago on 2026-10-07 at 19:54 by job 261007T1941-qiu
• Summary of results:
  • Rule engines:
    • Called: 12
    • Were able to test: 12
    • Reported any rule violations: 10
  • Violations: 515
  • Violators: 123
  • Issues: 38
• Download the full technical report (JSON)

About the issue

• Why it matters: Page cannot be properly displayed
• Priority: high
• Related WCAG standard: 4.1
• Reported by 1 rule engine (Html Checker API)
• Violations: 31
• Violators: 1

About the violator

• Tag name: HTML
• Text: [not applicable]
• Start tag: <html lang="en">
• XPath: /html
• Bounding box: x = 0, y = 0, width = 1920, height = 1080
• Reported by Html Checker API

Diagnoses

Here is how rule engines diagnose the CSS property does not exist issue for HTML element 0 of the Clean Air Task Force (CATF) donate page.

1. CSS: container: Property container doesn't exist. Extract: iner:page/inline-size;}body

   Rule engine: Html Checker API (World Wide Web Consortium)

   Rule: CSS: container: Property container doesn't exist.

2. CSS: container-type: Property container-type doesn't exist. Extract: ner-type: size){@con

   Rule engine: Html Checker API (World Wide Web Consortium)

   Rule: CSS: container-type: Property container-type doesn't exist.

3. CSS: container-type: Property container-type doesn't exist. Extract: ner-type: size){@med

   Rule engine: Html Checker API (World Wide Web Consortium)

   Rule: CSS: container-type: Property container-type doesn't exist.

4. CSS: container-type: Property container-type doesn't exist. Extract: ner-type: size){@con

   Rule engine: Html Checker API (World Wide Web Consortium)

   Rule: CSS: container-type: Property container-type doesn't exist.

5. CSS: container-type: Property container-type doesn't exist. Extract: ner-type: size){@med

   Rule engine: Html Checker API (World Wide Web Consortium)

   Rule: CSS: container-type: Property container-type doesn't exist.

6. CSS: container-type: Property container-type doesn't exist. Extract: ner-type: size){@con

   Rule engine: Html Checker API (World Wide Web Consortium)

   Rule: CSS: container-type: Property container-type doesn't exist.

7. CSS: container-type: Property container-type doesn't exist. Extract: ner-type: size){@med

   Rule engine: Html Checker API (World Wide Web Consortium)

   Rule: CSS: container-type: Property container-type doesn't exist.

8. CSS: container-type: Property container-type doesn't exist. Extract: ner-type: size){@con

   Rule engine: Html Checker API (World Wide Web Consortium)

   Rule: CSS: container-type: Property container-type doesn't exist.

9. CSS: container-type: Property container-type doesn't exist. Extract: ner-type: size){@med

   Rule engine: Html Checker API (World Wide Web Consortium)

   Rule: CSS: container-type: Property container-type doesn't exist.

10. CSS: container-type: Property container-type doesn't exist. Extract: ner-type: size){@con

    Rule engine: Html Checker API (World Wide Web Consortium)

    Rule: CSS: container-type: Property container-type doesn't exist.

11. CSS: container-type: Property container-type doesn't exist. Extract: ner-type: size){@med

    Rule engine: Html Checker API (World Wide Web Consortium)

    Rule: CSS: container-type: Property container-type doesn't exist.

12. CSS: container-type: Property container-type doesn't exist. Extract: ner-type: size){@con

    Rule engine: Html Checker API (World Wide Web Consortium)

    Rule: CSS: container-type: Property container-type doesn't exist.

13. CSS: container-type: Property container-type doesn't exist. Extract: ner-type: size){@med

    Rule engine: Html Checker API (World Wide Web Consortium)

    Rule: CSS: container-type: Property container-type doesn't exist.

14. CSS: container-type: Property container-type doesn't exist. Extract: ner-type: size){@con

    Rule engine: Html Checker API (World Wide Web Consortium)

    Rule: CSS: container-type: Property container-type doesn't exist.

15. CSS: container-type: Property container-type doesn't exist. Extract: ner-type: size){@med

    Rule engine: Html Checker API (World Wide Web Consortium)

    Rule: CSS: container-type: Property container-type doesn't exist.

16. CSS: container-type: Property container-type doesn't exist. Extract: ner-type: size){@con

    Rule engine: Html Checker API (World Wide Web Consortium)

    Rule: CSS: container-type: Property container-type doesn't exist.

17. CSS: container-type: Property container-type doesn't exist. Extract: ner-type: size){@med

    Rule engine: Html Checker API (World Wide Web Consortium)

    Rule: CSS: container-type: Property container-type doesn't exist.

18. CSS: container-type: Property container-type doesn't exist. Extract: ner-type: size){@con

    Rule engine: Html Checker API (World Wide Web Consortium)

    Rule: CSS: container-type: Property container-type doesn't exist.

19. CSS: container-type: Property container-type doesn't exist. Extract: ner-type: size){@med

    Rule engine: Html Checker API (World Wide Web Consortium)

    Rule: CSS: container-type: Property container-type doesn't exist.

20. CSS: container-type: Property container-type doesn't exist. Extract: ner-type: size){@con

    Rule engine: Html Checker API (World Wide Web Consortium)

    Rule: CSS: container-type: Property container-type doesn't exist.

21. CSS: container-type: Property container-type doesn't exist. Extract: ner-type: size){@med

    Rule engine: Html Checker API (World Wide Web Consortium)

    Rule: CSS: container-type: Property container-type doesn't exist.

22. CSS: container-type: Property container-type doesn't exist. Extract: ner-type: size){@con

    Rule engine: Html Checker API (World Wide Web Consortium)

    Rule: CSS: container-type: Property container-type doesn't exist.

23. CSS: container-type: Property container-type doesn't exist. Extract: ner-type: size){@med

    Rule engine: Html Checker API (World Wide Web Consortium)

    Rule: CSS: container-type: Property container-type doesn't exist.

24. CSS: container-type: Property container-type doesn't exist. Extract: ner-type: size){@con

    Rule engine: Html Checker API (World Wide Web Consortium)

    Rule: CSS: container-type: Property container-type doesn't exist.

25. CSS: container-type: Property container-type doesn't exist. Extract: ner-type: size){@med

    Rule engine: Html Checker API (World Wide Web Consortium)

    Rule: CSS: container-type: Property container-type doesn't exist.

26. CSS: container-type: Property container-type doesn't exist. Extract: ner-type: size){@con

    Rule engine: Html Checker API (World Wide Web Consortium)

    Rule: CSS: container-type: Property container-type doesn't exist.

27. CSS: container-type: Property container-type doesn't exist. Extract: ner-type: size){@med

    Rule engine: Html Checker API (World Wide Web Consortium)

    Rule: CSS: container-type: Property container-type doesn't exist.

28. CSS: container-type: Property container-type doesn't exist. Extract: ner-type: size){@con

    Rule engine: Html Checker API (World Wide Web Consortium)

    Rule: CSS: container-type: Property container-type doesn't exist.

29. CSS: container-type: Property container-type doesn't exist. Extract: ner-type: size){@med

    Rule engine: Html Checker API (World Wide Web Consortium)

    Rule: CSS: container-type: Property container-type doesn't exist.

30. CSS: container-type: Property container-type doesn't exist. Extract: ner-type: size){@con

    Rule engine: Html Checker API (World Wide Web Consortium)

    Rule: CSS: container-type: Property container-type doesn't exist.

31. CSS: container-type: Property container-type doesn't exist. Extract: ner-type: size){@med

    Rule engine: Html Checker API (World Wide Web Consortium)

    Rule: CSS: container-type: Property container-type doesn't exist.