.carousel-control-prev,
.carousel-control-next {
  position: absolute;
  top: 35%;
  bottom: 40%;
  z-index: 1;
  display: -ms-flexbox;
  display: flex;
  -ms-flex-align: center;
  align-items: center;
  -ms-flex-pack: center;
  justify-content: center;
  width: 10%;
  color: #fff;
  text-align: center;
  opacity: 0.3;
  transition: opacity 0.15s ease;
}