.carousel {
  background: #EEE;
}

.carousel img {
  display: block;
  height: 200px;
}

@media screen and ( min-width: 768px ) {
  .carousel img {
    height: 400px;
  }
}

.carousel.is-fullscreen {
  position: fixed;
  width: 100vw;
  height: 100vh;
  top: 0;
  left: 0;
  background: black;
  z-index: 9999;
}