<!DOCTYPE html>
<html>
<body>
<img id="myImg" src="compman.gif" width="107" height="98">
<p>Click the button to change the height and width of the image to 300px.</p>
<button onclick="myFunction()">Try it</button>
<script>
function myFunction() {
document.getElementById("myImg").height = "300";
document.getElementById("myImg").width = "300";
}
</script>
</body>
</html>