.dropdown-submenu {
    position: relative;
}

.dropdown-submenu > .dropdown-menu {
    top: 0;
    left: 100%;
    margin-top: -5px;
    margin-left: 0;
}

.dropdown-submenu .dropdown-menu {
    margin-bottom: 8px;
}

.dropdown-submenu > a:after {
    display: block;
    content: " ";
    float: right;
    width: 0;
    height: 0;
    border-color: transparent;
    border-style: solid;
    border-width: 5px 0 5px 5px;
    border-left-color: #cccccc;
    margin-top: 5px;
    margin-right: -10px;
}

.dropdown-submenu .open > a:after {
    border-left-color: #ffffff;
}

.dropdown-submenu .open > .dropdown-menu, .dropdown-submenu .open > .dropdown-menu {
    display: block;
}

.navbar-default .navbar-nav .open .dropdown-menu .dropdown-submenu ul {
    background-color: #f6f6f6;
}

.navbar .navbar-nav .open .dropdown-submenu .dropdown-menu > li > a {
    padding-left: 30px;
}

@media screen and (min-width: 992px) {
    .dropdown-submenu .dropdown-menu {
        margin-bottom: 2px;
    }

    .navbar .navbar-nav .open .dropdown-submenu .dropdown-menu > li > a {
        padding-left: 25px;
    }

    .navbar-default .navbar-nav .open .dropdown-menu .dropdown-submenu ul {
        background-color: #fff;
    }
}