Tryit Editor v2.9

Edit This Code:
<!DOCTYPE html>
<html>
<body onclick="myFunction(event)">

<p>Click on any elements in this document to find out which element triggered the onclick event.</p>

<h1>This is a heading</h1>

<button>This is a button</button>

<span>A span element</span>

<p id="demo"></p>

<script>
function myFunction(event) { 
    var x = event.target;
    document.getElementById("demo").innerHTML = "Triggered by a " + x.tagName + " element";
}
</script>

</body>
</html>