Kilotest: Diagnoses of z-index not zero violation by HTML element 891 on Sightline Institute page

Basics

About the Sightline Institute page

• URL: https://www.sightline.org/
• Tested 29 days ago by job wxv on 2026-05-03 at 17:04

About HTML element 891

• 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

About the z-index not zero issue

• Why it matters: User cannot predict the effect of clicking
• Priority: lowest
• Related WCAG standard: 1.4

Diagnoses

Here is how tools diagnose the z-index not zero issue for HTML element 891 of the Sightline Institute page.

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

   Tool: Testaro (CVS Health)

   Rule: zIndex