Kilotest: Diagnoses of heading level skipped violation by HTML element 577 on Fair Vote page

Basics

About the page

About the issue

About the violator

Diagnoses

Here is how rule engines diagnose the heading level skipped issue for HTML element 577 of the Fair Vote page.

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

    Rule engine: Axe (Deque)

    Rule: heading-order

  2. The heading h3 (with computed level 3) follows the heading h1 (with computed level 1), skipping 1 heading level.

    Rule engine: Html Checker API (World Wide Web Consortium)

  3. Headings should step down one level at a time

    Rule engine: Pour (David Yarham and Geoffrey Crofte)

    Rule: heading-order