.dropdown-submenu {
    position: relative;
}

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

.dropdown-submenu:hover > .dropdown-menu {
    display: block;
    /*The below 3 lines are used to show a vertical scrollbar in the submenu container. This is needed for submenus with a lot of items*/
    height: auto;
    max-height: 200px;
    overflow-x: hidden;
}

.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: #ccc;
    margin-top: 5px;
    margin-right: -10px;
}

.dropdown-submenu:hover > a:after {
    border-left-color: #fff;
}

.dropdown-submenu-right {
    position: relative;
}

.dropdown-submenu-right > .dropdown-menu {
    top: 0;
    right: 100%;
    margin-top: -1px;
    margin-left: -1px;
    -webkit-border-radius: 0;
    -moz-border-radius: 0;
    border-radius: 0;
}

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

.dropdown-submenu-right > 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: #ccc;
    margin-top: 5px;
    margin-right: -10px;
}

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

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

.dropdown-submenu.pull-left > .dropdown-menu {
    left: -100%;
    margin-left: 10px;
    -webkit-border-radius: 6px 0 6px 6px;
    -moz-border-radius: 6px 0 6px 6px;
    border-radius: 6px 0 6px 6px;
}