How can I... force some HTML tags for all links to jpg files.

I've got a folder with about 100 jpg files and a menu which a link to each one. Works fine but looks crude. Obviously, the image shows as a default on a white background, located in the upper left. I'd like to spiffy up the appearance with a background color and centering the image. [e.g. with a simple html file or whatever] I would prefer to not to redo the menu file or the jpgs. Was hoping there would be a way to do this similar to the Apache HeaderName directive for folder listings. I tried in the htaccess file: IndexOptions +FancyIndexing AddDescription "test text" *.jpg But this doesn't even show the the test text. Thanks........