You can call the method getBoundingClientRect()
on a reference to the element. Then you can examine the top
, left
, right
and/or bottom
properties…
var offsets = document.getElementById('11a').getBoundingClientRect();
var top = offsets.top;
var left = offsets.left;
If using jQuery, you can use the more succinct code…
var offsets = $('#11a').offset();
var top = offsets.top;
var left = offsets.left;