.sticky{
    position: sticky;
    top: 0;
    z-index: 999;
}

.main-menu #clonedMenu li.b-category-li-0 .dropdown-megamenu .b-productcategories-level-1 .b-productcategories-level-2 {
    margin: 0;
}
.main-menu #clonedMenu li.b-category-li-0 .dropdown-megamenu .b-productcategories-level-1 .b-productcategories-level-2 a:hover {
    text-decoration: underline;
}