Kilotest: Diagnoses of CSS property does not exist violation by HTML element 87 on Buy Nothing Project page

Basics

About the page

• URL: https://buynothingproject.org/
• Tested 3 days ago on 2026-10-07 at 19:46 by job 261007T1941-8qh
• Summary of results:
  • Rule engines:
    • Called: 12
    • Were able to test: 12
    • Reported any rule violations: 11
  • Violations: 850
  • Violators: 399
  • Issues: 49
• 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: 44
• Violators: 29

About the violator

• Tag name: IMG
• Text: [not applicable]
• Start tag: <img decoding="async" width="1240" height="960" sizes="(min-width: 1200px) and (max-width: 1439.98px) 310px, (min-width: 810px) and (max-width: 1199.98px) 310px, (max-width: 809.98px) 310px, (min-width: 1440px) 310px" srcset="https://framerusercontent.com/images/PLfwuBuv1lB6LxM0gfNLi5qJPjU.png?scale-down-to=512&amp;width=1240&amp;height=960 512w,https://framerusercontent.com/images/PLfwuBuv1lB6LxM0gfNLi5qJPjU.png?scale-down-to=1024&amp;width=1240&amp;height=960 1024w,https://framerusercontent.com/images/PLfwuBuv1lB6LxM0gfNLi5qJPjU.png?width=1240&amp;height=960 1240w" src="https://framerusercontent.com/images/PLfwuBuv1lB6LxM0gfNLi5qJPjU.png?width=1240&amp;height=960" alt="" style="display:block;width:100%;height:100%;border-radius:inherit;corner-shape:inherit;object-position:center;object-fit:fill">
• XPath: /html/body/div[1]/div[1]/div[1]/div[1]/div[2]/div[2]/div[3]/div[1]/img[1]
• Bounding box: [not obtained]
• Reported by Html Checker API

Diagnoses

Here is how rule engines diagnose the CSS property does not exist issue for HTML element 87 of the Buy Nothing Project page.

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

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