slide-viewer {
  position: relative;
  overflow: hidden;
  height: 300px;
}

.slide-group {
  width: 100%;
  height: 100%;
  position: relative;
}

.slide {
  width: 100%;
  height: 100%;
  display: none;
  position: absolute;
}

.slide: first-child {
  display: block;
}