.dropdown {
    position: relative;
    display: inline-block;
}

.dropbtn {
    background-color: #444;
    color: white;
    padding: 10px 20px;
    font-size: 16px;
    border: none;
    cursor: pointer;
    border-radius: 5px;
}

.dropdown-content {
    display: none;
    position: absolute;
    background-color: #a7a7a7;
    min-width: 160px;
    box-shadow: 0px 8px 16px 0px rgba(0,0,0,0.2);
    z-index: 99999;
    border-radius: 5px;
}

    .dropdown-content a {
        color: black;
        padding: 12px 16px;
        text-decoration: none;
        display: block;
        border-radius: 5px;
        position: relative;
    }

        .dropdown-content a:hover {
            background-color: #f1f1f1;
        }

    .dropdown:hover .dropdown-content,
    .dropdown-content:hover {
        display: block !important;
    }

.dropdown::before {
    content: '';
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    height: 20px;
    background: transparent;
}

.header-top .dropdown {
    position: relative;
    z-index: 99999;
}

.header-nav {
    z-index: 9998;
}

.dropdown:hover ~ * {
    pointer-events: none;
}