componentFromPoint.aspx font size:
<html>
<head>
<title>componentFromPoint Method</title>
<link rel="stylesheet" href="/shared/netdemos.css">

<script language="JavaScript">
<!--
function trackScroll ( ) {
   var sElem = "";
   sElem = document.body.componentFromPoint ( event.clientX, event.clientY );
   window.status = "mousemove " + event.clientX + ", " + event.clientY + " The mouse pointer is over: " + sElem;
}
//-->
</script>
</head>

<body onmousemove="trackScroll ( )">
<!-- #include virtual="~/shared/top.inc" -->

<div class="header"><h2>Abakada HTML Demo: componentFromPoint Property</h2></div>
<hr size=1 width=92%>

<p>Hover the mouse pointer over any scroll bar. See the window status field for information about the coordinates of the pointer in the client and which scroll bar component the mouse is over. </p>

<div align="center"><textarea cols=80 rows=20>This text area forces scroll bars to appear on the window.</textarea></div>

<hr size=1 width=92%>
<!-- #include virtual="~/shared/viewsrc.inc" -->

</body>
</html>