Kilotest: Diagnoses of CSS property does not exist violation by HTML element 0 on Buy Nothing Project contact page

Basics

About the page

• URL: https://buynothingproject.org/contact
• Tested 3 days ago on 2026-10-07 at 19:48 by job 261007T1941-dyc
• Summary of results:
  • Rule engines:
    • Called: 12
    • Were able to test: 12
    • Reported any rule violations: 11
  • Violations: 738
  • Violators: 258
  • Issues: 47
• 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: 16
• Violators: 1

About the violator

• Tag name: HTML
• Text: [not applicable]
• Start tag: <html lang="en" data-redirect-timezone="1" dir="ltr">
• XPath: /html
• Bounding box: x = 0, y = 0, width = 1920, height = 1307
• 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 Buy Nothing Project contact page.

1. CSS: position-area: Property position-area doesn't exist. Extract: -area:top right)){bod

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

   Rule: CSS: position-area: Property position-area doesn't exist.

2. CSS: corner-shape: Property corner-shape doesn't exist. Extract: :superellipse(2)){:root{--one-

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

   Rule: CSS: corner-shape: Property corner-shape doesn't exist.

3. CSS: position-area: Property position-area doesn't exist. Extract: -area:top right)){bod

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

   Rule: CSS: position-area: Property position-area doesn't exist.

4. CSS: corner-shape: Property corner-shape doesn't exist. Extract: -shape,initial));padding:var(-

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

   Rule: CSS: corner-shape: Property corner-shape doesn't exist.

5. CSS: corner-shape: Property corner-shape doesn't exist. Extract: r-shape,initial);padding:var(-

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

   Rule: CSS: corner-shape: Property corner-shape doesn't exist.

6. CSS: corner-shape: Property corner-shape doesn't exist. Extract: shape,initial)));padding:var(-

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

   Rule: CSS: corner-shape: Property corner-shape doesn't exist.

7. CSS: corner-shape: Property corner-shape doesn't exist. Extract: -shape,initial));padding:var(-

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

   Rule: CSS: corner-shape: Property corner-shape doesn't exist.

8. CSS: corner-shape: Property corner-shape doesn't exist. Extract: shape,initial)));padding:var(-

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

   Rule: CSS: corner-shape: Property corner-shape doesn't exist.

9. CSS: corner-shape: Property corner-shape doesn't exist. Extract: :superellipse(2)){:root{--one-

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

   Rule: CSS: corner-shape: Property corner-shape doesn't exist.

10. CSS: corner-shape: Property corner-shape doesn't exist. Extract: ner-shape:inherit;point

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

    Rule: CSS: corner-shape: Property corner-shape doesn't exist.

11. CSS: corner-shape: Property corner-shape doesn't exist. Extract: ner-shape:inherit;point

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

    Rule: CSS: corner-shape: Property corner-shape doesn't exist.

12. CSS: corner-shape: Property corner-shape doesn't exist. Extract: ut-corner-shape);border-color:

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

    Rule: CSS: corner-shape: Property corner-shape doesn't exist.

13. CSS: corner-shape: Property corner-shape doesn't exist. Extract: ut-corner-shape);background:va

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

    Rule: CSS: corner-shape: Property corner-shape doesn't exist.

14. CSS: corner-shape: Property corner-shape doesn't exist. Extract: ut-corner-shape);box-shadow:va

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

    Rule: CSS: corner-shape: Property corner-shape doesn't exist.

15. CSS: corner-shape: Property corner-shape doesn't exist. Extract: ut-corner-shape);border-style:

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

    Rule: CSS: corner-shape: Property corner-shape doesn't exist.

16. CSS: corner-shape: Property corner-shape doesn't exist. Extract: ner-shape:inherit;point

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

    Rule: CSS: corner-shape: Property corner-shape doesn't exist.