.dropdown-submenu {
    position: relative;
}


.dropdown-submenu > .dropdown-menu {
    top: 0;
    padding: 0px !important;
    left: 100%;
    margin-top: -6px;
    margin-left: -10px;

    -webkit-border-radius: 6px 6px 6px 6px;
    -moz-border-radius: 6px 6px 6px 6px;
    border-radius: 6px 6px 6px 6px;
}

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

.dropdown-submenu > a:before {
    display: block;
    content: " ";
    float: right;
    width: 0;
    height: 0;
    border-top: 5px solid transparent;
    border-bottom: 5px solid transparent;
    border-left: 5px solid #ccc;
    margin-top: 5px;
    margin-left: -10px;


}

.dropdown-submenu:hover > a:before {
    border-right-color: #fff;
}

.dropdown-submenu.pull-left {
    float: none;
}