body 
    {
      padding-top: 70px;
    }

    .dropdown-submenu 
    {
      position: relative;
    }

    .dropdown-submenu>.dropdown-menu 
    {
      top: 0;
      left: 100%;
      margin-top: -6px;
      margin-left: -1px;
      -webkit-border-radius: 0 6px 6px 6px;
      -moz-border-radius: 0 6px 6px;
      border-radius: 0 6px 6px 6px;
    }

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

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

    .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-menu > li > a:hover, .dropdown-menu > li > a:focus 
    {
      background-color:#343a40;
    }