html,
body {
  height: 100%;
  margin: 0;
  background-color: #000;
  font-family: sans-serif;
}

.slideshow {
  position: relative;
  width: 100vw;
  height: 100vh;
  overflow: hidden;
}

.slideshow img {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0;
  transition: opacity 0.8s ease-in-out;
}

.slideshow img.is-active {
  opacity: 1;
}