Sync HTML5 audio with CSS3 animation
summary
Shows a working demo that keeps a CSS3 animation and an HTML5 audio element perfectly in step by using a clone-and-replace reset for the animation and the audio element’s ended event drives both to fake a loop, calling currentTime = 0 and play. Uses plain CSS animations plus <audio> with MP3/Ogg fallbacks; mentions the Web Animations API (usable via polyfill) and Web Audio API but notes limited browser support for the latter.
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