Kilotest: Diagnoses of position sticky violation by HTML element 129 on Mozilla Foundation page

Basics

About the Mozilla Foundation page

• URL: https://www.mozilla.org/en-US/
• Tested 38 days ago by job tyn on 2026-04-24 at 19:48

About HTML element 129

• Tag name: ASIDE
• Text: Help us improve your Mozilla experience … Cookie settings
• Start tag: <aside class="moz-consent-banner" id="moz-consent-banner" role="region" aria-label="Cookie Banner" data-nosnippet="true" data-testid="consent-banner">
• XPath: /html/body/aside[1]
• Bounding box: x = 0, y = 0, width = 0, height = 0

Take me there

About the position sticky issue

• Why it matters: User may be unable to see needed content or may be forced to scroll in both dimensions
• Priority: lowest
• Related WCAG standard: 1.4.10

Diagnoses

Here is how tools diagnose the position sticky issue for HTML element 129 of the Mozilla Foundation page.

1. This element has "position: fixed". This may require scrolling in two dimensions, which is considered a failure of this Success Criterion.

   Tool: HTML CodeSniffer (Squiz Labs)

   Rule: W-WCAG2AAA.Principle1.Guideline1_4.1_4_10.C32,C31,C33,C38,SCR34,G206