.dropdown-menu {
    	overflow: visible; /* falls ein Theme/Reset das anders setzt */
}
/* Schatten-Pfeil */
.dropdown-menu::after {
  content: "";
  position: absolute;
  top: -9px;
  left: var(--arrow-left, 24px);
  border-left: 9px solid transparent;
  border-right: 9px solid transparent;
  border-bottom: 9px solid rgba(0,0,0,.15); /* Schatten */
  pointer-events: none;
  z-index: 1000;
}

/* eigentlicher Pfeil */
.dropdown-menu::before {
  content: "";
  position: absolute;
  top: -8px;
  left: var(--arrow-left, 24px);
  border-left: 8px solid transparent;
  border-right: 8px solid transparent;
  border-bottom: 8px solid var(--dropdown-menu);
  pointer-events: none;
  z-index: 1001;
}

@media (max-width: 991.98px) {
  .dropdown-menu::before,
  .dropdown-menu::after {
    display: none !important;
  }
}