.submenu-toggle {
  background: none;
  border: none;
  cursor: pointer;
  padding: 0 5px;
  font-size: 0.8em;
}
.menu-menu-aprendo-container .sub-menu {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}
.menu-menu-aprendo-container .menu-item-has-children.open > .sub-menu {
  max-height: 500px;
}