@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}
.dropdown-menu.show {
  -webkit-animation: fadeIn 0.3s alternate;
  /* Safari 4.0 - 8.0 */
  animation: fadeIn 0.3s alternate;
}



.dropdown-submenu {
  position: relative;
}

.dropdown-submenu .dropdown-menu {
  top: 0;
  left: 100%;
  margin-top: -1px;
}
.dropdown-submenu .dropdown-menu-right {
  left: auto;
  right: 100%;
}

.nav-item.dropdown.dropdown-mega {
  position: static;
}
.nav-item.dropdown.dropdown-mega .dropdown-menu {
  width: 90%;
  top: auto;
  left: 5%;
}