Kilotest: Diagnoses of attribute missing violation by HTML element 218 on Sightline Institute page

Here is how tools diagnose the attribute missing issue for HTML element 218 of the Sightline Institute page.

Basics

• About the attribute missing issue
  • Why it matters: Item behaves improperly
  • Priority: highest
  • Related WCAG standard: 4.1.2
• About the Sightline Institute page
  • URL: https://www.sightline.org/
  • Tested on 2026-04-03 at 04:04
• About HTML element 218
  • Take me there
  • Tag name: DIV
  • Text: All … Housing + Cities
  • Start tag: <div class="gb-container gb-container-3cbf3052 gb-tabs__buttons" aria-orientation="horizontal">
  • XPath: /html/body/div[2]/div[1]/div[1]/main[1]/article[1]/div[1]/div[1]/div[3]/div[1]/div[1]/div[1]/div[1]
  • Bounding box: x = 424, y = 1196, width = 1072, height = 45

Diagnoses

1. Element div is missing one or more of the following attributes: aria-expanded, aria-valuenow, role.

   Tool: Html Checker API (World Wide Web Consortium)