main_mega_menu{
    padding-top: 55px! important;
}


nav.mega-menu {
    position: relative;
    z-index: 999;
    display: block;
    width: 100%;
    min-width: 100%;
    height: 100%;
    margin: 0 auto;
    color: inherit;
    padding-top: 55px! important;
}