Kilotest: Diagnoses of heading level skipped violation by HTML element 282 on LibreOffice page

Here is how tools diagnose the heading level skipped issue for HTML element 282 of the LibreOffice page.

Basics

• About the heading level skipped issue
  • Why it matters: Helper misdescribes the document
  • Priority: low
  • Related WCAG standard: 1.3.1
• About the LibreOffice page
  • URL: https://www.libreoffice.org/
  • Tested on 2026-04-05 at 23:04
• About HTML element 282
  • Take me there
  • Tag name: H5
  • Text: from The Document Foundation Planet
  • Start tag: <h5>
  • XPath: /html/body/section[3]/div[1]/div[1]/div[2]/h5[1]
  • Bounding box: x = 975, y = 1549, width = 555, height = 18

Diagnoses

1. Heading levels should only increase by one; Heading order invalid

   Tool: Axe (Deque)

   Rule: heading-order

2. <p>Headings and subheadings create a <a href="https://www.w3.org/WAI/tutorials/page-structure/headings/" target="_blank" title="Opens in new tab">navigable table of contents</a> for assistive devices. The numbers indicate indents in a nesting relationship:</p> <ul> <li>Heading level 1 <ul> <li>Heading level 2: a topic <ul><li>Heading level 3: a subtopic</li></ul></li> <li>Heading level 2: a new topic</li> </ul> </li> </ul> <p>This heading skipped from level 3 to level 5. From a screen reader, this sounds like content is missing.</p> <p><strong>To fix:</strong> adjust levels to form an accurate outline, without gaps.</p>

   Tool: Editoria11y (Princeton University)

   Rule: headingLevelSkipped

3. The heading h5 (with computed level 5) follows the heading h3 (with computed level 3), skipping 1 heading level.

   Tool: Html Checker API (World Wide Web Consortium)

4. Skipped heading level

   Tool: WAVE (Utah State University)

   Rule: heading_skipped