.link {
  position: absolute;
  width: 100%;
  height: 100%;
  z-index: 999;
}

.mask {
  width: 100%;
  height: 100%;
  transition: ease-in-out .3s;
  background-color: rgba(97, 97, 97, 0.1);
}

.mask:hover {
  background-color: rgba(97, 97, 97, 0.3);
}

.carousel-caption {
  bottom: 30% !important;
}