dt { margin-left: 1.5em; width: 5em; font-weight: bold; float: left; }
dd { margin-left: 6.5em; }

a#headerimg { width: 120px; height:70px; background: url(images/header.gif) no-repeat; }
a:hover#headerimg { background: url(images/header2.gif) no-repeat; }