<div id="carouselExampleControls" class="carousel slide" data-ride="carousel">
        <div class="carousel-inner">
          <div class="carousel-item active" style="background-image: url('https://i.imgur.com/pPkMJAZ.jpg')">
            <div class="carousel-caption d-none d-md-block">
            </div>
          </div>
          <div class="carousel-item" style="background-image: url('https://i.imgur.com/1vp8lX7.jpg')">
            <div class="carousel-caption d-none d-md-block">
            </div>
          </div>
          <div class="carousel-item" style="background-image: url('https://i.imgur.com/2nInfTJ.png')">
            <div class="carousel-caption d-none d-md-block">

            </div>
          </div>
        </div>
        <a class="carousel-control-prev" href="#carouselExampleControls" 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="#carouselExampleControls" role="button" data-slide="next">
          <span class="carousel-control-next-icon" aria-hidden="true"></span>
          <span class="sr-only">Next</span>
        </a>
      </div>