ul {
    margin: 0;
    padding: 0;
    list-style: none;
    background:#000;
    width: 200px; /* Width of Menu Items */
    border-bottom: 1px solid #ccc;
}

ul li {
    position: relative;
}

li ul {
    position: absolute;
    left: 199px; /* Set 1px less than menu width */
    top: 0;
    display: none;
}

/* Styles for Menu Items */
ul li a {
    display: block;
    text-decoration: none;
    color: #777;    
    padding: 5px;
    border: 1px solid #ccc; /* IE6 Bug */
    border-bottom: 0;
}

/* Holly Hack. IE Requirement \*/
* html ul li { float: left; height: 1%; }
* html ul li a { height: 1%; }
/* End */

li:hover ul, li.over ul { display: block; } /* The magic */