CSS Properties: How set the box-shadow property is animatable?

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HTML Code:

<!DOCTYPE html>
<title>How set initial property to its default value shadow</title>
<style type="text/css">
width: 200px;
height: 100px;
border: 3px solid #FF0000;
background-color: #4364FF;
-webkit-animation: mymove 5s infinite; /* Chrome, Safari, Opera */
animation: mymove 5s infinite;
@keyframes mymove {
50% {box-shadow: 10px 20px 30px pink;}
<p>w3resource Tutorial</p>
<div id="mydiv">Box-shadow animatable</div>

Live Demo:

See the Pen box-shadow-animatable-answer by w3resource (@w3resource) on CodePen.

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