【mouse】
<!DOCTYPE html>
<html>
<head>
<script type='text/javascript'
src='http://code.jquery.com/jquery-1.8.3.js'></script>
<script type='text/javascript'>
$(function(){
$(document).on('click', function(evt) {
var elem = document.elementFromPoint(evt.clientX, evt.clientY);
console.log(elem);
});
});
</script>
</head>
<body>
<html>
<body>
some text here
<p id="para1">lalala</p>
bla bla
</body>
</html>
</body>
</html>
