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<!DOCTYPE html>
<html>
<head>
<style>
#DIV1 {
  height: 200px;
  width: 200px;
  margin: auto;
  border: 1px solid black;
}
#DIV2 {
  width: 150px;
  height: 150px;
  border: 1px solid black;
  background-color: coral;
  scale: 1 1;
  animation: mymove 5s infinite;
}
@keyframes mymove {
  50% {scale: 2 0.7;}
}
#DIV2original {
  position: absolute;
  width: 150px;
  height: 150px;
  border: 1px dashed grey;
  background-color: lightgrey;
  opacity: 0.5;
}
</style>
</head>
<body>
<h1>Animation of scale</h1>
<p>Gradually change the scale property from "1 1" to "2 0.7", and back:<p>
<p><b>Note: </b>The grey DIV element indicates where the DIV2 element would be without the change in scale property.</p>
<div id="DIV1">DIV1
  <div id="DIV2original">DIV2</div> 
  <div id="DIV2">DIV2</div>
</div>
</body>