.banner-slider {
  position: relative;
  overflow: hidden;
  width: 100%;
}
.banner-slider .slide {
  width: 100%;
  height: 100%;
  background-size: cover;
  background-position: center;
  position: absolute;
  top: 0;
  left: 100%;
  transition: left 0.5s;
}
.banner-slider .slide.active {
  left: 0;
}
.banner-slider .caption {
  position: absolute;
  bottom: 20px;
  left: 20px;
  padding: 10px 20px;
  color: #fff;
  font-size: 20px;
}
.banner-slider .prev,
.banner-slider .next {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: rgba(0,0,0,0.5);
  color: #fff;
  border: none;
  font-size: 30px;
  cursor: pointer;
}
.banner-slider .prev { left: 10px; }
.banner-slider .next { right: 10px; }