/*
 * transition and animation
 */
.fade-in-down-enter-active,
.fade-in-down-leave-active {
  transform: translateY(0);
  opacity: 1;
  transition: opacity 0.2s ease, transform 0.3s ease;
}

.fade-in-down-enter,
.fade-in-down-leave-to,
.fade-in-down-leave-active {
  opacity: 0;
  transform: translateY(-10px);
}