Tryit Editor v2.9

Edit This Code:
<!DOCTYPE html>
<html>
<head>
<style>
#test {
  left: 100px;
  top: 50px;
  margin: 10px;
  padding: 10px;
  width: 300px;
  position: relative;
  border: 5px solid black
}
</style>
</head>
<body>
<div id="test">
<p>Click the button to get the left and top offsets for the test div.</p>
<p><button onclick="myFunction()">Try it</button></p>
<p id="demo">offsetLeft: <br>offsetTop: </p>
</div>
<script>
function myFunction() {
    var testDiv = document.getElementById("test");
    var demoDiv = document.getElementById("demo");
    demoDiv.innerHTML = "offsetLeft: " + testDiv.offsetLeft + "<br>offsetTop: " + testDiv.offsetTop;
}
</script>

</body>
</html>