<html>
<body>
<h1>The Window Object</h1>
<h2>The outerWidth and outerHeight Properties</h2>
<p id="demo"></p>
<script>
let w = outerWidth;
let h = outerHeight;
document.getElementById("demo").innerHTML = "Width: " + w + "<br>Height: " + h;
</script>
</body>
</html>