Kilotest: Diagnoses of z-index not zero violation by HTML element 114 on Sightline Institute page

Here is how tools diagnose the z-index not zero issue for HTML element 114 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 114
  • Tag name: NAV
  • Text: Our Work … Contact Us
  • Start tag: <nav class="auto-hide-sticky has-sticky-branding main-navigation sub-menu-right stuckElement" id="site-navigation" aria-label="Primary" itemtype="https://schema.org/SiteNavigationElement" itemscope="">
  • XPath: /html/body/header[1]/div[1]/nav[2]
  • Bounding box: x = 520, y = 15, width = 739, height = 60

Diagnoses

1. z-index style property of the element is 100

   Tool: Testaro (CVS Health)

   Rule: zIndex