elementFromPoint DOM Method :-

elementFromPoint() is a method on "document"object in HTML.
It returns the HTML element at the given X & Y  positions.

For Example :-

1) Position a html element say a textarea at (10,10) as follows :-

<textarea style="position:absolute;left:10px;top:10px">

Following script will show aleart as follows:-

 var ele = document.elementFromPoint(11,11);
 alert(ele)