nav {background: #413F3C;}
nav ul {
    margin: 0;
    padding: 0;
    list-style: none;
}
nav ul:after {
    content: "";
    display: table;
    clear: both;
}
nav a {
    text-decoration: none;
    display: block;
    transition: .3s linear;
}
.topmenu > li {
    float: left;
    position: relative;
    border-left: 1px solid black;
}
.topmenu > li:first-child {border-left: 0;}
.topmenu > li > a {
    padding: 20px 30px;
    font-size: 12px;
    text-transform: uppercase;
    color: #FEFDFD;
    letter-spacing: 2px;
}
.topmenu > li > a.active,
.submenu a:hover {color: #ddbe86;}
.topmenu .fa,
.submenu .fa {
    margin-left: 5px;
    color: inherit;
}
.submenu {
    position: absolute;
    z-index: 5;
    min-width: 200px;
    background: white;
    border-top: 1px solid #CBCBCC;
    border-left: 1px solid #CBCBCC;
    border-right: 1px solid #CBCBCC;
    visibility: hidden;
    opacity: 0;
    transform-origin: 0% 0%;
    transform: rotateX(-90deg);
    transition: .3s linear;
}
.submenu li {position: relative;}
.submenu li a {
    color: #282828;
    padding: 10px 20px;
    font-size: 13px;
    border-bottom: 1px solid #CBCBCC;
}
.submenu .submenu {
    position: absolute;
    left: 100%;
    top: -1px;
    transition: .3s linear;
}
nav li:hover > .submenu {
    transform: rotateX(0deg);
    visibility: visible;
    opacity: 1;
}