Create interactive JavaScript video effects

Modern web users have embraced video, but developers often find video integration problematic owing to cross-device/platform limitations (most mobile browsers do not support autoplay for inline video) and fewer opportunities to infuse playback with user interactivity. With some fairly simple methods, you can replicate video-like effects without needing to transcode large files or fight autoplay restrictions on mobile devices.

This guide will step through some simple techniques to create dynamic lighting effects by progressively adjusting the opacity of three image layers. The resulting effect will look as smooth as video – check out the demo. We'll also show some ways to enhance these animations with a few fun opportunities for user interactions.

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