Kilotest: Diagnoses of video alternative missing violation by HTML element 565 on Effective Environmentalism page

Basics

About the page

About the issue

About the violator

Diagnoses

Here is how rule engines diagnose the video alternative missing issue for HTML element 565 of the Effective Environmentalism page.

  1. You have not defined neither <a href="https://developer.mozilla.org/en/docs/Web/HTML/Element/track"><code><track></code></a> elements to provide descriptions nor <a href="https://developer.mozilla.org/en/docs/Web/HTML/Element/source"><code><source></code></a> with an audio as an alternative.

    Rule engine: ASLint (eSSENTIAL Accessibility)

    Rule: video_audio_descriptions