.navbar-nav li:hover > ul.dropdown-menu {
    display: block;
}

.dropdown-submenu {
    position: relative;
}

    .dropdown-submenu > .dropdown-menu {
        top: 0;
        left: 100%;
        margin-top: -6px;
    }

/* rotate caret on hover */
.dropdown-menu > li > a:hover:after {
    text-decoration: underline;
    transform: rotate(-90deg);
}

th, tr, td {
    vertical-align: middle !important;
    font-size: 14px;
    text-align: center;
}