When a thumbnail is clicked, let's launch a lightbox to show a larger version of the image.
We are working off the previous recipe; be sure to familiarize yourself with the concepts of the scrolling thumbnail list. Here we will add a pop-up-like lightbox overlay that will show a full version of any thumbnail image in our scrolling thumbnail display.
Continue the previous recipe and make it better by launching a lightbox on mouse-click. Style the lightbox such that the overlay uses a semi-transparent PNG image to partially obscure the background of the page.