Kilotest: Diagnoses of z-index not zero violation by HTML element 889 on Sightline Institute page

Here is how tools diagnose the z-index not zero issue for HTML element 889 of the Sightline Institute page.

Basics

• About the z-index not zero issue
  • Why it matters: User cannot predict the effect of clicking
  • Priority: lowest
  • Related WCAG standard: 1.4
• About the Sightline Institute page
  • URL: https://www.sightline.org/
  • Tested on 2026-04-03 at 04:04
• About HTML element 889
  • Tag name: A
  • Text: Skip to content … Terms of Service | Privacy Notice | Free Use Policy
  • Start tag: <a title="Scroll back to top" aria-label="Scroll back to top" rel="nofollow" href="#" class="generate-back-to-top" data-scroll-speed="400" data-start-scroll="300" role="button">
  • XPath: /html/body/a[2]
  • Bounding box: x = 1850, y = 2010, width = 40, height = 40

Diagnoses

1. z-index style property of the element is 10

   Tool: Testaro (CVS Health)

   Rule: zIndex