@keyframes fader {
    from { opacity: 1.0; }
    to   { opacity: 0.0; }
  }

  .fading-slideshow {
    position: relative;
    padding: 0;
    list-style-type: none;
    width:100%;
    height:0;
    padding-top: 56.5%;
  }
  .fading-slideshow > li {
    position: absolute;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    background-color: #fff;
    display: flex;
    justify-content: center;
    align-items: center;
  }

  /* current slide */

  .fading-slideshow > li:first-of-type {
    animation-name: fader;
    animation-delay: 3s;
    animation-duration: 1.5s;
    z-index: 20;
  }

  /* next slide to display */

  .fading-slideshow > li:nth-of-type(2) {
    z-index: 10;
  }

  /* all other slides */

  .fading-slideshow > li:nth-of-type(n+3) {
    display: none;
  }

  /* slider img */
  .slider-img0{background-image:url(../img/home/foto-gruppo.jpg);background-size:cover;}
  .slider-img1{background-image:url(../img/home/studio1.jpg);background-size:cover;background-position-x:center;}
  .slider-img2{background-image:url(../img/home/studio2.jpg);background-size:cover;}
  .slider-img3{background-image:url(../img/home/studio3.jpg);background-size:cover;background-position-x:center;}
  .slider-img4{background-image:url(../img/home/studio4.jpg);background-size:cover;}

  @media screen and (min-width: 768px) {
    .slider-img1{background-position-y:3.5rem;}
    .slider-img2{background-position-y:3.5rem;}
    .slider-img3{background-position-y:3.5rem;}
  }
  @media screen and (max-width: 767.9px) {
    .slider{margin-top: 90px;}
    .fading-slideshow{height:0;padding-top: 56.25%;}
  }