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Result Size: 625 x 571
x
 
<!DOCTYPE html>
<html>
<head>
<style> 
#myDIV {
  width: 500px;
  background-color: lightblue;
  overflow: auto;
  border: 1px solid black;
  animation: mymove 5s infinite;
}
@keyframes mymove {
  50% {max-height: 100px;}
}
</style>
</head>
<body>
<h1>Animation of max-height</h1>
<p>Change the max-height from "none" to "100px", and back to "none":<p>
<div id="myDIV">
  <p>This DIV element does not have a pre-defined height.</p>
  <p>An animation will change the max-height, from "none" to "100px".</p>
  <p>The height of this DIV element will not exceed 100 pixels.</p>
</div>
<p><b>Note:</b> CSS Animations do not work in Internet Explorer 9 and earlier versions.</p>
</body>
<!-- Mirrored from www.w3schools.com/cssref/tryit.asp?filename=trycss_anim_max-height by HTTrack Website Copier/3.x [XR&CO'2014], Mon, 27 Jan 2020 02:35:52 GMT -->
</html>
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