Toggling Animations On and Off

A nicely detailed tutorial by Kirupa that gets into how you might provide a UI with persisted options that control whether animations run or not.

The trick is custom properties that control the movement:

body { --toggle: 0; --playState: "paused"; }

Which are used within animations and transitions:

.animation { animation: bobble 2s infinite; animation-play-state: var(--playState); } .transition { transition: transform calc(var(--toggle) * .15s) ease-in-out; }

And toggle-able by JavaScript:

// stop animation"--toggle", "0");"--playState", "paused"); // play animation"--toggle", "1");"--playState", "running");

Then get into using the media query to test for reduced motion off the bat, and storing the preferred value in localStorage.

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