header {
    display: flex;
    justify-content: center;
    height: 60px;
    box-shadow: 0 1px 5px rgba(0, 0, 0, 0.2);
}

ul.menu {
    margin: 0;
    padding: 4px;
}

ul.menu li {
    display: inline;
    margin-right: 10px;
    padding: 10px;
    line-height: 55px;
}

a {
    text-decoration: none;
    color: #555;
    font-family: 'Playfair Display', sans-serif;
    text-transform: uppercase;
    transition: color 0.5s ease-in-out;
}

a:hover {
    color: #999;
}

ul li.active a::after {
    width: 6px;
    height: 6px;
    background: #acacac;
    top: 27px;
    margin-top: 0;
    margin-left: 15px;
    position: absolute;
    content: '';
}