Dostępność
a11y/media-alternative
Recorded audio has a transcript; recorded video has audio description of what is only shown, or a full text alternative.
poważnaręczneWCAG 1.2.1, 1.2.3, 1.2.5 · AAfe-a11y-media
Dlaczego
A podcast without a transcript is closed to deaf people; a product demo where the steps are only shown on screen is closed to blind people. Captions alone do not describe what is seen.
Poprawka
Link a transcript right next to every audio player. For video, describe important visual information in the narration itself (the cheapest way), add an audio-described version, or at AA at least provide described audio; a full text transcript with the visual details is the A-level minimum. Keep the transcript as HTML, not a PDF.
Przykłady
<!-- good -->
<audio controls src="episode-12.mp3"></audio>
<p><a href="/podcast/12/transcript">Read the transcript of episode 12</a></p>Źródła
Fakty
- Identyfikator
a11y/media-alternative- Waga
- poważna
- Sprawdzanie
- ręczne ocenia człowiek; raport podaje to jako listę kontrolną
- Dotyczy plików
page- WCAG 2.2
- 1.2.1, 1.2.3, 1.2.5, poziom AA
- Uczy jej skill
fe-a11y-mediaMedia, motion and flashing- Od wersji
- 0.1.0
Przeczytaj w terminalu
npx github:dawidolko/frontend-skills explain a11y/media-alternative