Kilotest: Diagnoses of code invalid violation by HTML element 203 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: Invalid code in the page may prevent a helper from working
• Priority: high
• Related WCAG standard: 4.1
• Reported by 1 rule engine (Html Checker API)
• Violations: 32
• Violators: 32

About the violator

• Tag name: H3
• Text: Is my donation tax deductible?
• Start tag: <h3 class="css-3f67sk eha3s670">
• XPath: /html/body/div[1]/div[1]/main[1]/div[3]/div[1]/div[1]/div[1]/div[1]/section[1]/div[3]/h3[1]
• Bounding box: x = 353, y = 1588, width = 526, height = 24
• Reported by Html Checker API

Take me there

Diagnoses

Here is how rule engines diagnose the code invalid issue for HTML element 203 of the Clean Air Task Force (CATF) donate page.

1. The element h3 must not appear as a descendant of an element with the attribute role=button.

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