.modal-scroll::-webkit-scrollbar {
  width: 5px;
}

.modal-scroll::-webkit-scrollbar-button {
  background: transparent;
  border-radius: 4px;
}

.modal-scroll::-webkit-scrollbar-track-piece {
  background: transparent;
}

.modal-scroll::-webkit-scrollbar-thumb {
  border-radius: 4px;
  background-color: rgba(0, 0, 0, 0.4);
  border: 1px solid slategrey;
}

.modal-scroll::-webkit-scrollbar-track {
  box-shadow: transparent;
}

.concept {
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
  box-sizing:border-box;
}