ul {
    position: relative;

}

ul li {
    position: relative;
    z-index: 200;
}


div.ahover {
    position: absolute;
}


ul#nav_main {
    font-size: 2em;
    font-weight: bold;
    width: 10em;
}

ul#nav_main li {
    color: #abb;
	height:50px;
}



ul#nav_main div.ahover {
    background:#000 url('../images/feat_merlot1.jpg') left bottom no-repeat;
}