Kilotest: Diagnoses of CSS invalid violation by HTML element 0 on Good Food Institute (GFI) contact page

Basics

About the page

• URL: https://gfi.org/contact/
• Tested 3 days ago on 2026-10-07 at 21:45 by job 261007T2129-wkj
• Summary of results:
  • Rule engines:
    • Called: 12
    • Were able to test: 12
    • Reported any rule violations: 11
  • Violations: 1181
  • Violators: 728
  • Issues: 57
• 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)
• Violations: 6
• Violators: 1

About the violator

• Tag name: HTML
• Text: [not applicable]
• Start tag: <html lang="en-US" prefix="og: https://ogp.me/ns#" class="js">
• XPath: /html
• Bounding box: x = 0, y = 0, width = 1920, height = 5992
• Reported by Html Checker

Diagnoses

Here is how rule engines diagnose the CSS invalid issue for HTML element 0 of the Good Food Institute (GFI) contact page.

1. CSS: transform: The types are incompatible. Extract: lightbox-scale))}to{transform:

   Rule engine: Html Checker (World Wide Web Consortium)

   Rule: CSS: transform: The types are incompatible.

2. CSS: transform: The types are incompatible. Extract: lightbox-scale));visibility:hi

   Rule engine: Html Checker (World Wide Web Consortium)

   Rule: CSS: transform: The types are incompatible.

3. CSS: Parse Error. Extract: important; box-sh

   Rule engine: Html Checker (World Wide Web Consortium)

   Rule: CSS: Parse Error.

4. CSS: Parse Error. Extract: b(0 0 0 / 10%); } .single-tri

   Rule engine: Html Checker (World Wide Web Consortium)

   Rule: CSS: Parse Error.

5. CSS: Parse Error. Extract: / 10%); } .singl

   Rule engine: Html Checker (World Wide Web Consortium)

   Rule: CSS: Parse Error.

6. CSS: opacity: 0 is not a opacity value. Extract: opacity: 0px; back

   Rule engine: Html Checker (World Wide Web Consortium)

   Rule: CSS: opacity: 0 is not a opacity value.