.pkp_structure_head {
    background-color: #F7F7F7;
    border-bottom: 1px solid #ddd;
}

.pkp_navigation_primary_wrapper {
    width: auto;
    padding-left: 10px;
    padding-right: 10px;
}

.pkp_site_nav_menu {
    background: #FF9933;

}