#menu-dropdown {
  font-size: 2em;
  color: blue;
  margin-left: 20px;
}

#menu-dropdown:hover {
  cursor: pointer;
}

#menuDiv-dropdown {
  font-size: 2em;
  padding: 10px;
  position: absolute;
  border: 1px solid blue;
}

.invisible {
  display: none;
}