<div style="width:50%;margin: 40px auto;background:#eee;"><div id="carouselExampleControls" class="carousel slide" data-ride="carousel">
  <div class="carousel-inner">
    <div class="carousel-item active">
      <img class="d-block w-100" src="https://images.pexels.com/photos/414171/pexels-photo-414171.jpeg?auto=compress&cs=tinysrgb&h=750&w=1260" alt="First slide">
    </div>
    <div class="carousel-item">
      <img class="d-block w-100" src="https://images.pexels.com/photos/371633/pexels-photo-371633.jpeg?auto=compress&cs=tinysrgb&h=750&w=1260" alt="Second slide">
    </div>
    <div class="carousel-item">
      <img class="d-block w-100" src="https://images.pexels.com/photos/358482/pexels-photo-358482.jpeg?auto=compress&cs=tinysrgb&h=750&w=1260" alt="Third slide">
    </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>
</div>

$('#carouselExampleControls').carousel();