.v-enter-active, .v-leave-active {
  transition: opacity 0.5s ease;
}
.v-enter-from, .v-leave-to {
  opacity: 0;
}

.header-enter-active, .header-leave-active {
  transition: transform 0.3s ease;
  transform: translate(0%, 0%);
}
.header-enter-from, .header-leave-to {
  transform: translate(0%, -100%);
}

.fadeHeight-enter-active,
.fadeHeight-leave-active {
  transition: all 0.5s ease;
}
.fadeHeight-enter-from,
.fadeHeight-leave-to
{
  opacity: 0;
  transform: scaleY(0);
  height: auto;
}