#wrapper div.caption {margin: 0; padding:0; position: relative;}

#wrapper div.caption p {position: absolute; margin: 0; padding: 2px; font-size: .9em; bottom: 0; left: 0; background:black; color: white; opacity: .8; text-decoration:none; width:98%;}

#wrapper div.caption img {margin: 0; padding: 0;}