Kilotest: Diagnoses of focusable element hidden violation by HTML element 218 on Centre for Effective Altruism page

Basics

About the Centre for Effective Altruism page

• URL: https://www.effectivealtruism.org/
• Tested 38 days ago by job 6gw on 2026-04-24 at 21:54

About HTML element 218

• Tag name: BUTTON
• Text: Subscribe
• Start tag: <button href="" dir="auto" target="_blank" rel="noopener noreferrer" type="submit" class="css-1atwe1p-Button-root-Button-filledBlack">
• XPath: /html/body/div[1]/div[1]/div[1]/main[1]/div[1]/div[2]/form[1]/div[1]/button[1]
• Bounding box: x = 1739, y = 953, width = 127, height = 46

About the focusable element hidden issue

• Why it matters: Keyboard-only user cannot navigate properly to the operable items
• Priority: highest
• Related WCAG standard: 4.1.2

Diagnoses

Here is how tools diagnose the focusable element hidden issue for HTML element 218 of the Centre for Effective Altruism page.

1. Element "button" should not be focusable within the subtree of an element with an 'aria-hidden' attribute with value 'true'

   Tool: Accessibility Checker (IBM)

   Rule: aria_hidden_nontabbable