* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body, html {
  width: 100%;
  height: 100%;
  overflow: hidden;
  background-color: #000;
  display: flex;
  justify-content: center;
  align-items: center;
}

.slider-container {
  position: relative;
  width: 100%;
  height: 100%;
}

.slider-container img {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: contain;
  opacity: 0;
  transition: opacity 1s ease-in-out;
}

.slider-container img.active {
  opacity: 1;
  z-index: 1;
}