<html>
<body style="background:#f3f3f3 url('img_tree.png');">
<h1>HTML Style Object</h1>
<h2>The backgroundImage Property</h2>
<p>The background image is:</p>
<p id="demo" style="font-size:32px"></p>
<script>
let img = document.body.style.backgroundImage;
document.getElementById("demo").innerHTML = img;
</script>
</body>
</html>