MegaMenu.css

.quiqqer-menu-megaMenu {
    float: left;
    position: relative;
    z-index: 50;
    width: 100%;
}

.quiqqer-menu-megaMenu-list {
    margin: 0;
    padding: 0;
}

.quiqqer-menu-megaMenu-list-item {
    display: block;
    float: left;
    list-style-type: none;
    padding: 10px;
    position: relative;
}

.quiqqer-menu-megaMenu-list-item a {
    display: block;
}

/** sub menu data
 ================================================= */

.quiqqer-menu-megaMenu-list-item-menu {
    align-content: stretch;
    box-shadow: 0 10px 20px 0 rgba(0, 0, 0, 0.35);
    display: none;
    left: 0;
    position: absolute;
    max-width: 1200px;
    width: 100%;
}



/** sub menu data
 ================================================= */

.quiqqer-menu-megaMenu-mobile {
    cursor: pointer;
    display: block;
    float: right;
    font-size: 20px;
    line-height: 60px;
    padding: 0 10px;
}