nav {
    border-top: solid 1px white;
    width: 100%;
    background: #093f7b;
    font-size: 16px;
    box-shadow: 0 0 0px rgba(0, 0, 0, 1);
    font-family: "HelveticaNeue", sans-serif;
}


/* first stage */

nav>ul {
    position: relative;
    display: flex;
    justify-content: space-between;
    width: 100%;
    margin: 0 auto;
    padding: 0;
}

nav a {
    display: block;
    color: #fff;
    text-decoration: none;
}

nav ul li {
    color: #fff;
    list-style: none;
    transition: 0.5s;
}

nav>ul>li>a {
    padding: 15px 23px;
}

nav ul>li.submenu>a:after {
    position: relative;
    float: right;
    content: '';
    margin-left: 10px;
    margin-top: 8px;
    border-left: 5px solid transparent;
    border-right: 5px solid transparent;
    border-top: 5px solid #fff;
    border-bottom: 5px solid transparent;
    font-size: 13px;
    font-weight: bold;
}

nav ul>li.submenu:hover>a:after {
    margin-top: 2px;
    border-top: 5px solid transparent;
    border-bottom: 5px solid #fff;
}

nav>ul>li:hover {
    background: #093f7b;
}


/* second stage (the mega-menu) */

nav ul.megamenu {
    position: absolute;
    display: flex;
    flex-wrap: wrap;
    width: auto;
    top: -9999px;
    padding: 5px 20px 10px 0px;
    padding-bottom: 0px;
    background: #E4E4E4;
    text-align: left;
    border-top: 5px solid #8EB852;
    box-shadow: 0 5px 10px rgba(0, 0, 0, 0.5);
    z-index: 1;
    font-size: 13px;
}

nav ul li:hover ul.megamenu {
    top: 100%;
}


/* third stage (child-menus in the mega-menu) */

nav ul.megamenu ul {
    margin-bottom: 20px;
    color: #000;
    box-shadow: none;
}

nav ul.megamenu p {
    margin-bottom: 5px;
}

nav ul.megamenu ul li {
    display: block;
}

nav ul.megamenu ul li a {
    margin-top: 5px;
    transition: 0.5s;
    color: #000;
}

nav ul.megamenu ul li a:hover {
    color: #8EB852;
}