#IDSelector{
    background-color: #000000;
    width: 150px;
}

#IDSelector > ul{
    list-style-type: none;
    margin: 0;
    padding: 0;
}

#IDSelector ul li{
    position: relative;
    border-bottom: 1px solid #FFF;
}

#IDSelector ul li:first-child{
    border-top: 1px solid #FFF;
}

#IDSelector ul li a{
    display: block;
    color: #FFF;
    text-decoration: none;
    padding: 5px;
}

#IDSelector ul li a:hover{
    background-color: darkgray;
}

.menu-2{
    display: none;
    position: absolute;
    left: 100%;
    top:0;
    background-color: #000000;
    list-style-type: none;
    margin: 0;
    padding: 0;
    min-width: 200px;
    z-index: 1000;
}

.menu-2 li {
    border: 1px solid white;
    width: 100%;
}

.menu-2 li a {
    text-align: left;
}

.menu-1:hover .menu-2 {
    display: block;
}

.menu-2 li a:hover {
    background-color: oldlace;
    color: black;
}