Kilotest: Diagnoses of attribute invalid violation by HTML element 275 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 275

• Tag name: DIV
• Text: Housing + Cities … …
• Start tag: <div class="gb-container gb-container-d6497016 gb-tabs__item gb-tabs__item-open" id="gb-tab-item-d6497016" aria-labelledby="gb-tab-button-97ae4ddd">
• XPath: [not obtained]
• Bounding box: x = 424, y = 1260, width = 1072, height = 1247

Take me there

About the attribute invalid issue

• Why it matters: Item behaves improperly
• Priority: highest
• Related WCAG standard: 1.3.1

Diagnoses

Here is how tools diagnose the attribute invalid issue for HTML element 275 of the Sightline Institute page.

1. Elements must only use permitted ARIA attributes

   Tool: Axe (Deque)

   Rule: aria-prohibited-attr

2. The ARIA attributes "aria-labelledby" are not valid for the element <div> with implicit ARIA role "generic"

   Tool: Accessibility Checker (IBM)

   Rule: aria_attribute_valid