#menuCap2,
#menuCap2 ul,
#menuCap3,
#menuCap3 ul {
    list-style: none;
    margin: 0;
    padding: 0;
}

#menuCap2,
#menuCap3 {
    width: 150px;
}

#menuCap2 li,
#menuCap3 li {
    position: relative;
}

#menuCap2 li a,
#menuCap3 li a {
    display: block;
    width: 150px;
    box-sizing: border-box;
    padding: 10px;
    background: #000000;
    color: #FFF;
    border-bottom: 1px solid #FFF;
    text-decoration: none;
}

#menuCap2 li:hover > a,
#menuCap3 li:hover > a {
    background: darkgray;
}

#menuCap2 li ul,
#menuCap3 li ul {
    display: none;
    position: absolute;
    top: 0;
    left: 100%;
    width: max-content;
    z-index: 1;
}

#menuCap2 li:hover > ul,
#menuCap3 li:hover > ul {
    display: block;
}

#menuCap2 li ul li a,
#menuCap3 li ul li a {
    width: max-content;
    box-sizing: border-box;
}