.mv .mv__title-sub {
  position: absolute;
  bottom: 40%;
  left: 50%;
  transform: translateX(-50%);
  z-index: -1;
  text-align: center;
}

.mv .mv__title-sub span {
  color: #fff;
  letter-spacing: 0.2rem;
  font-size: 12px;
}