Bootstrap hero header example one with carousel fade

<div id="carouselExampleCaptions" class="carousel slide carousel-fade" data-ride="carousel">
  <ol class="carousel-indicators">
    <li data-target="#carouselExampleCaptions" data-slide-to="0" class="active"></li>
    <li data-target="#carouselExampleCaptions" data-slide-to="1"></li>
    <li data-target="#carouselExampleCaptions" data-slide-to="2"></li>
  </ol>
  <div class="carousel-inner">
    <div class="carousel-item active"> <img src="img/intro-one/slider-one.jpg" class="d-block w-100" alt="...">
      <div class="background-overlay"></div>
      <div class="carousel-caption">
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        <a href="" class="btn btn-lg btn-danger">View More</a> </div>
    </div>
    <div class="carousel-item"> <img src="img/intro-one/slider-two.jpg" class="d-block w-100" alt="...">
      <div class="background-overlay"></div>
      <div class="carousel-caption">
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        <a href="" class="btn btn-lg btn-danger">View More</a> </div>
    </div>
    <div class="carousel-item"> <img src="img/intro-one/slider-three.jpg" class="d-block w-100" alt="...">
      <div class="background-overlay"></div>
      <div class="carousel-caption">
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        <a href="" class="btn btn-lg btn-danger">View More</a> </div>
    </div>
  </div>
  <a class="carousel-control-prev" href="#carouselExampleCaptions" role="button" data-slide="prev"> 
  <span class="carousel-control-prev-icon" aria-hidden="true"></span> <span class="sr-only">Previous</span> 
  </a> 
  <a class="carousel-control-next" href="#carouselExampleCaptions" role="button" data-slide="next">
   <span class="carousel-control-next-icon" aria-hidden="true"></span> <span class="sr-only">Next</span>
    </a> 
    </div>

.carousel-caption {
    top: 33%;
}
.carousel-item {
    position: relative;
}
.carousel-item img {
    z-index: 2;
}
.background-overlay {
    position: absolute;
    z-index: 3;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.2);
}
.carousel-control-next, .carousel-control-prev{
z-index: 4;    
}
@media(max-width:1180px) {
  .carousel-caption h5 {
    font-size: 2.5rem !important;
    margin-bottom:15px !important;
  }
  .carousel-caption p {
    font-size: 1.5rem !important;
    margin-bottom:20px !important;
  }
  .carousel-caption {
    top:25%;
    }
}
@media(max-width:980px) {
    .carousel-caption {
    top: 20%;
    }
  .carousel-caption h5 {
    font-size: 1.5rem !important;
  }
   .carousel-caption p {
    font-size: 1rem !important;
  }
  .carousel-caption .btn {
    display:none;
  }
}