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Result Size: 625 x 571
x
 
<!DOCTYPE html>
<html>
<head>
</head>
<body>
<p>Click the button to create a STYLE element, and place it in the head section.</p>
<button onclick="myFunction()">Try it</button>
<p>The created style element contains css declarations that will change the font properties of this document.</p>
<script>
function myFunction() {
  var x = document.createElement("STYLE");
  var t = document.createTextNode("body {font: 20px verdana;}");
  x.appendChild(t);
  document.head.appendChild(x);
}
</script>
</body>
<!-- Mirrored from www.w3schools.com/jsref/tryit.asp?filename=tryjsref_style_create by HTTrack Website Copier/3.x [XR&CO'2014], Mon, 27 Jan 2020 03:03:06 GMT -->
</html>
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