Kilotest: Diagnoses of z-index not zero violation by HTML element 95 on Opportunity Green page

Basics

About the page

• URL: https://www.opportunitygreen.org/
• Tested 3 days ago on 2026-10-07 at 22:06 by job 261007T2138-sqp
• Summary of results:
  • Rule engines:
    • Called: 12
    • Were able to test: 10
    • Reported any rule violations: 10
  • Violations: 767
  • Violators: 303
  • Issues: 72
• Download the full technical report (JSON)

About the issue

• Why it matters: User cannot predict the effect of clicking
• Priority: lowest
• Related WCAG standard: 1.4
• Reported by 1 rule engine (Testaro)
• Violations: 51
• Violators: 51

About the violator

• Tag name: BUTTON
• Text: Skip to main content … Privacy & Cookie Policy
• Start tag: <button id="back-to-top" class="bttBtn" style="display: none; position: fixed; top: 50%; right: 0px; transform: translateY(-50%); z-index: 999;">
• XPath: /html/body/button[1]
• Bounding box: [not obtained]
• Reported by Testaro

Diagnoses

Here is how rule engines diagnose the z-index not zero issue for HTML element 95 of the Opportunity Green page.

1. z-index style property of the element is 999

   Rule engine: Testaro (CVS Health)

   Rule: zIndex