Hello Mladen,
Add this code also –
.et_b_header-menu .secondary-menu-wrapper .menu > li:nth-last-of-type(1) .nav-sublist-dropdown,
.et_b_header-menu .secondary-menu-wrapper .menu > li:nth-last-of-type(2) .nav-sublist-dropdown,
.et_b_header-menu .secondary-menu-wrapper .menu > li:nth-last-of-type(3) .nav-sublist-dropdown {
bottom: 0;
}
Regards