You've used the Web Animations API to enhance a simple popup with an effect inspired by Android's homescreen folders.
We've covered-
-
Including the Web Animations API polyfill
-
Simple animations with
Element.animate
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Using an
Animation
to control playback rate and listen for finish events -
Using constructors like
KeyframeEffect
, plus groups viaGroupEffect
andKeyframeEffect
-
A brief introduction to using fill modes to your advantage
If you'd like to learn more, head back to Web Animations Codelabs.