* {box-sizing: border-box;}
body {
    margin: 0;
    font-family: Roboto, -apple-system, 'Helvetica Neue', 'Segoe UI', Arial, sans-serif;
    background: white;
}
header {
    background: #AFCDE7;
    text-align: center;
}
header a {
    display: block;
    text-decoration: none;
    outline: none;
    transition: .3s ease-in-out;
}
nav {
    display: table;
}
nav ul {
    list-style: none;
    margin: 0;
    padding: 0;
}
.topmenu:after {
    content: "";
    display: table;
    clear: both;
}
.topmenu > li {
    float: left;
    position: relative;
}
.topmenu > li > a {
    text-transform: uppercase;
    font-size: 14px;
    font-weight: bold;
    color: #404040;
    padding: 15px 30px;
}
.topmenu li a:hover {color: #D5B45B;}
.submenu-link:after {
    content: "\2B07";
    font-family: "FontAwesome";
    color: inherit;
    margin-left: 10px;
}
.submenu {
    background: #273037;
    position: absolute;
    left: 0;
    top: 100%;
    z-index: 5;
    width: 180px;
    opacity: 0;
    transform: scaleY(0);
    transform-origin :0 0;
    transition: .5s ease-in-out;
}
.submenu a {
    color: white;
    text-align: left;
    padding: 12px 15px;
    font-size: 13px;
    border-bottom: 1px solid rgba(255,255,255,.1);
}
.submenu li:last-child a {border-bottom: none;}
.topmenu > li:hover .submenu {
    opacity: 1;
    transform: scaleY(1);
}