In your Firefox or Chrome browser there is a nice right click feature called Inspect Element. This tool is really great for showing relevant HTML & CSS. To move top nav up, adjust top margins and padding.
#topnav ul {
border-top: 3px solid #C90;
border-bottom: 3px solid #C90;
margin: 20px 0px;
padding: 10px 0px;
}
Nancy O.