code:
<!-- Prologue -->
CONTENT START
<h1>07-03-carousel simple</h1>
<h3>With indicators</h3>
<div id="carouselExampleIndicators" class="carousel slide w-75 m-auto" data-ride="carousel">
<ol class="carousel-indicators">
<li data-target="#carouselExampleIndicators" data-slide-to="0" class="active"></li>
<li data-target="#carouselExampleIndicators" data-slide-to="1"></li>
<li data-target="#carouselExampleIndicators" data-slide-to="2"></li>
</ol>
<div class="carousel-inner">
<div class="carousel-item active">
<!img src="..." class="d-block w-100" alt="...">
<svg class="bd-placeholder-img card-img-top" width="100%" height="180" xmlns="http://www.w3.org/2000/svg"
preserveAspectRatio="xMidYMid slice" focusable="false" role="img" aria-label="Placeholder: Image cap">
<title>Placeholder</title>
<rect width="100%" height="100%" fill="#bbbbbb"></rect>
<text x="50%" y="50%" text-anchor="middle" fill="#2e2226" dy=".3em">First slide</text>
</svg>
</div>
<div class="carousel-item">
<!img src="..." class="d-block w-100" alt="...">
<svg class="bd-placeholder-img card-img-top" width="100%" height="180" xmlns="http://www.w3.org/2000/svg"
preserveAspectRatio="xMidYMid slice" focusable="false" role="img" aria-label="Placeholder: Image cap">
<title>Placeholder</title>
<rect width="100%" height="100%" fill="#bbbbbb"></rect>
<text x="50%" y="50%" text-anchor="middle" fill="#2e2226" dy=".3em">Second slide</text>
</svg>
</div>
<div class="carousel-item">
<!img src="..." class="d-block w-100" alt="...">
<svg class="bd-placeholder-img card-img-top" width="100%" height="180" xmlns="http://www.w3.org/2000/svg"
preserveAspectRatio="xMidYMid slice" focusable="false" role="img" aria-label="Placeholder: Image cap">
<title>Placeholder</title>
<rect width="100%" height="100%" fill="#bbbbbb"></rect>
<text x="50%" y="50%" text-anchor="middle" fill="#2e2226" dy=".3em">Third slide</text>
</svg>
</div>
</div>
<a class="carousel-control-prev" href="#carouselExampleIndicators" 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="#carouselExampleIndicators" role="button" data-slide="next">
<span class="carousel-control-next-icon" aria-hidden="true"></span>
<span class="sr-only">Next</span>
</a>
</div>
<hr />
CONTENT END
<!-- Epilogue -->