.flatpickr-day.selected,
.flatpickr-day.selected:hover,
.flatpickr-day.selected:focus,
.flatpickr-day.selected.inRange,
.flatpickr-day.startRange,
.flatpickr-day.endRange {
  background-color: #000000 !important;
  border-color: #000000 !important;
}