#parentMenu {<!--from   w w w .j a  v  a2  s  .c  om-->
  display: block;
  top: 0;
}
/* Helps position submenu */
.dropdown-submenu {
  position: relative;
}
/* Menus under the submenu should show up on the right of the parent */
.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 6px;
  border-radius: 0 6px 6px 6px;
}
/* Make submenu visible when hovering on link */
.dropdown-submenu:hover>.dropdown-menu {
  display: block;
}
/* Add carot to submenu links */
.dropdown-submenu>a:after {
  display: block;
  float: right;
  /*simple */
  content: "?";
  color: #cccccc;
  /* looks a little better */
  content: " ";
  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;
}
/* Change carot color on hover */
.dropdown-submenu:hover>a:after {
  border-left-color: #ffffff;
}