Javascript Style How to - Get screen coordinates of DOM element

Question

We would like to know how to get screen coordinates of DOM element.

Answer


<!DOCTYPE html>
<html>
<head>
<script type='text/javascript'>
window.onload=function(){<!--from   w  w  w  . j a v a  2s .  c  o m-->
    var elem = document.getElementById('elem');
    console.log('top = ' + elem.offsetTop + '\nleft = ' + elem.offsetLeft);
}
</script>
</head>
<body>
  <br /> asdda
  <span id="elem">me</span>
</body>
</html>

The code above is rendered as follows: