.carousel-item {
  height: 100vh;
  min-height: 350px;
  background: no-repeat center center scroll;
  -webkit-background-size: cover;
  -moz-background-size: cover;
  -o-background-size: cover;
  background-size: cover;
}

@media (max-height: 700px) {
  .display-4 {
    display: none;
  }

  .lead {
    display: none;
  }
}