Reply To: login – search – wishlist – shopping cart

Try to use this code to center them

.basel-navigation .menu>li.menu-item-design-full-width .sub-menu {
    display:-webkit-box;
    display:-ms-flexbox;
    display:flex;
    -webkit-box-orient: horizontal;
    -webkit-box-direction: normal;
        -ms-flex-direction: row;
            flex-direction: row;
    -webkit-box-pack: center;
        -ms-flex-pack: center;
            justify-content: center;
    -ms-flex-wrap:wrap;
        flex-wrap:wrap;
}

.basel-navigation .menu>li.menu-item-design-full-width .sub-menu li {
    text-align:center;
}

.basel-navigation .menu>li.menu-item-design-full-width .sub-menu>li {
  margin-left: 10px;
}