How can I find whether there are any elements at a certain position?

I 开发者_如何转开发have a collection of divs with the same class at various positions on a larger div. Is there a way, using jQuery, to determine if any divs are overlapping a given position on the screen?

Read the section on document.elementFromPoint(): http://www.quirksmode.org/blog/archives/2010/06/more_ie9_goodne.html

You can use this to find the "top-most" element at that location. Hide that element, then ask again. If you get another hit, then the 2 divs overlap at that position.

You could do this using the offset() method of JQuery, but the only way to be accurate is to get the offset of every element in the document -- not likely to perform well.