.hero {
  position: relative;
  height: 580px;
  overflow: hidden;
}

.slide {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  opacity: 0;
  transition: opacity .6s ease;
}

.slide::before {
  content:"";
  position:absolute;
  inset:0;
  background:rgba(0,0,0,.45);
}

.slide.active { opacity: 1; z-index: 1; }

.hero-content {
  position: relative;
  color:#fff;
  text-align:center;
  top:50%;
  transform:translateY(-50%);
}

.hero-bullets {
  position:absolute;
  bottom:20px;
  left:50%;
  transform:translateX(-50%);
}

.hero-bullets span {
  width:10px;height:10px;border-radius:50%;
  background:#777;display:inline-block;margin:0 4px;
}
.hero-bullets span.active { background:gold; }