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<!DOCTYPE html>
<html>
<head>
<style> 
div {
  width: 100px;
  height: 100px;
  background: red;
  color: white;
  animation: mymove 2s infinite linear alternate;
}
@keyframes mymove {
  to {transform: rotateY(180deg);}
}
</style>
</head>
<body>
<h1>Change backface-visibility with JavaScript</h1>
<p>Check/uncheck the checkbox to change the backface-visibility of the animated DIV element:</p>
<div id="myDIV"><h1>Hello</h1></div>
<input type="checkbox" onclick="myFunction(this)" checked>backface-visibility
<script>
function myFunction(x) {
  if (x.checked === true) {
    document.getElementById("myDIV").style.WebkitBackfaceVisibility = "visible"; // Safari
    document.getElementById("myDIV").style.backfaceVisibility = "visible";
  } else {
    document.getElementById("myDIV").style.WebkitBackfaceVisibility = "hidden"; // Safari
    document.getElementById("myDIV").style.backfaceVisibility = "hidden";
  }
}
</script>
</body>
<!-- Mirrored from www.w3schools.com/cssref/tryit.php?filename=trycss3_js_backface-visibility by HTTrack Website Copier/3.x [XR&CO'2014], Wed, 21 Dec 2022 17:34:45 GMT -->
</html>