Full-Height Header One Menu

.navbar-style-one {
    height: 100%;
    margin-top: 0;
    top: 0;
}
.navbar-style-one #site-navigation,
.navbar-style-one .dropdown-menu,
.navbar-style-one .dropdown-menu > li,
.navbar-style-one .dropdown-menu > li.menu-item > a {
    height: 100%;
}
.navbar-style-one .dropdown-menu > li {
    display: table;
}
.navbar-style-one .dropdown-menu > li.menu-item > a {
    display: table-cell;
    vertical-align: middle;
}