title: Difference in performance between img tag elements vs divs with background images?
body: <p>Are there any differences in performance or load/caching behavior when displaying images in img tags vs divs with image backgrounds?  </p>
  
  <p><strong>My example:</strong></p>
  
  <p>I have a site with many overlapping images, some of which I will need to load dynamically with javascript.  One issue is that I need to anchor the images to the right of the element, so that I can do a nice wipe-to-right effect.  Because of this I was using a div with background image positioned right.  Couldn't figure out how to do this with img but since divs are working for me I didn't know if this would matter...</p>