aside.Sidebar .Slider {
  overflow: hidden;
  position: relative;
  display: inline-block;
  vertical-align: middle;
  width: 100%;
  height: 200px;
}

aside.Sidebar .Slider img {
  opacity: 0;
  z-index: -1;
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  right: 0;
  -o-object-fit: cover;
  object-fit: cover;
  -o-object-position: center;
  object-position: center;
  display: inline-block;
  vertical-align: middle;
  margin: auto;
  width: auto;
  height: auto;
  max-width: 100%;
  max-height: 100%;
}

aside.Sidebar .Slider img.next {
  opacity: 1;
  z-index: 1;
}

aside.Sidebar .Slider img.prev {
  opacity: 1;
  z-index: 2;
}

aside.Sidebar .Slider img.fade-out {
  opacity: 0;
  transition: visibility 0s .5s, opacity .5s linear;
  visibility: hidden;
}