Make HTML audio and video work for everyone: captions, transcripts and audio description, keyboard-friendly controls, autoplay and audio control, reduced motion, flashing and seizure safety, labelling embedded players, and a practical checklist for every kind of media, with live demos.
Start learning HTML audio and video: the audio, video, source and track elements, built-in controls, captions and subtitles, accessible and responsive media, and the formats browsers can play, with a live format checker and a map of this section.
Learn the HTML audio element: adding sound with src, controls, loop, muted, preload and autoplay, choosing MP3, AAC, Ogg or WAV, fallback content, the autoplay rules, controlling playback with JavaScript, transcripts, and accessibility, with a live audio player you can try.
Learn the HTML source element: offering several formats for audio and video with src and type, how the browser picks the first source it can play, codecs in the type attribute, the media attribute, fallback content, and common mistakes, with a live demo that shows the browser choosing.