.unido-dropdown .dropdown-toggle::after {
  display: none;
}

.unido-dropdown-highlight {
  position: absolute;
  right: 0.5rem;
  bottom: 0;
  left: 0.5rem;
  height: 0.5rem;
  background: #0059ab;
  opacity: 0;
  transition: all 0.2s ease-in-out;
}
button:hover + .unido-dropdown-highlight, .show + .unido-dropdown-highlight {
  opacity: 1;
}