* {
  margin: 0;
  padding: 0;
}
* {
  box-sizing: border-box;
}
.window {
  width: 400px;
  height: 300px;
  margin: 20px auto;
  overflow: hidden;
}
.images {
  position: relative;
}
.images > img {
  width: 100%;
  transition: all 0.3s;
  position: absolute;
  top: 0;
}

.images > img.current {
  left: 0;
  transform: translateX(0);
  z-index: 1;
}
.images > img.leave {
  transform: translateX(-100%);
  z-index: 1;
}
.images > img.enter {
  transform: translateX(100%);
}