ul.sq_menu {
    position: absolute;
    list-style-type: none;
    margin: 0;
    padding: 0;
    overflow: visible;
    background-color: #333;
}

ul.sq_menu li {
    position: relative;
    display: inline-block;
    color: white;
    text-align: center;
    padding: 14px 16px;
    text-decoration: none;
}

ul.sq_menu li:hover {
    background-color: red;
}

ul.sq_menu li > ul {
    display: none;
    position: absolute;
    top: 45px;
    left: 0px;
    background-color: #f9f9f9;
    min-width: 160px;
    box-shadow: 0px 8px 16px 0px rgba(0,0,0,0.2);
    overflow: visible;
}

ul.sq_menu li > ul > li {
    color: black;
    padding: 12px 16px;
    text-decoration: none;
    display: block;
    text-align: left;
}

ul.sq_menu li > ul > li:hover {background-color: #f1f1f1}

/*li:hover > ul {
    display: block;
}*/

ul.sq_menu li > ul > li > ul {
    position: absolute;
    top: 0px;
    left: 160px;
}