html,
body {
  min-height: 100%;
}
body {
  font-size: 62.5%;
}
ul.carrousel {
  list-style: none;
  margin: 0;
  padding: 0;
  position: relative;
}
ul.carrousel li {
  position: absolute;
  z-index: 1;
  top: 0;
  left: 0;
  margin: 0;
  padding: 0;
  opacity: 0;
}
ul.carrousel li.active,
ul.carrousel li.next {
  opacity: 1;
}