Kilotest: Diagnoses of z-index not zero violation by HTML element 108 on Metropolitan Transportation Authority page

Basics

About the Metropolitan Transportation Authority page

• URL: https://www.mta.info/
• Tested 30 days ago by job oyu on 2026-06-20 at 13:49

About HTML element 108

• Tag name: UL
• Text: Back … Guides
• Start tag: <ul id="mtaNavSecondaryContent-1002" class="mta-ml-000 mta-overflow-y-auto mta-tr-secondary-content mta-absolute mta-inset-0 mta-bg-grey-000 mta-z-1200 mta-p-200 hidden">
• XPath: /html/body/div[1]/section[1]/div[1]/section[1]/div[1]/ul[1]/li[5]/ul[1]
• Bounding box: x = 0, y = 0, width = 0, height = 0

Take me there

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 rule engines diagnose the z-index not zero issue for HTML element 108 of the Metropolitan Transportation Authority page.

1. z-index style property of the element is 1200

   Tool: Testaro (CVS Health)

   Rule: zIndex