#slide {
  position: relative;
  max-width: 1920px;
  margin: 0 auto;
}
#slide img {
  position: absolute;
  top: 0;
  left: 0;
  display: block;
  width: 100%;
  opacity: 0;
  visibility: hidden;
  transition: 0.8s;
}
#slide img:first-child {
  position: static;
}
#slide img.show {
  opacity: 1;
  visibility: visible;
}
#slide .prev, #slide .next {
  display: block;
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  cursor: pointer;
  transition: 0.4s;
  background-color: rgba(0, 0, 0, 0.12);
  padding: 14px 12px;
}
#slide .prev:hover, #slide .next:hover {
  background-color: rgba(0, 0, 0, 0.24);
}
#slide .prev:after, #slide .next:after {
  display: block;
  content: "";
  width: 10px;
  height: 10px;
  border-top: 2px solid #fff;
  border-right: 2px solid #fff;
}
#slide .prev {
  left: 0;
}
#slide .prev:after {
  transform: rotate(-135deg);
  margin-left: 4px;
}
#slide .next {
  right: 0;
}
#slide .next:after {
  transform: rotate(45deg);
  margin-right: 4px;
}