multiple items carousel codepen best design code example

Example: codepen iframe carousel and slider style

<div class="container">
      <h1>Bootstrap Carousel Sample</h1>
      <div id="carouselExampleControls" class="carousel slide" data-ride="carousel" data-interval="false">
        <div class="carousel-inner">
          <div class="carousel-item active">
            <img class="d-block w-100" src="https://cdn.rawgit.com/KimSarabia/bootstrap-carousel-sample/a1eee04b/slide-3.jpg" alt="First slide">
          </div>
          <div class="carousel-item">
            <img class="d-block w-100" src="https://cdn.rawgit.com/KimSarabia/bootstrap-carousel-sample/a1eee04b/slide-2.jpg" alt="Second slide">
          </div>
          <div class="carousel-item">
            <img class="d-block w-100" src="https://cdn.rawgit.com/KimSarabia/bootstrap-carousel-sample/a1eee04b/slide-1.jpg" alt="Third slide">
          </div>
          <div class="carousel-item">
            <div class="carousel-video-inner">
              <div id="video-player" data-video-id="aGnIYA17uz0"></div>
            </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>
    </div>