Live Demo: Bootstrap Client Testimonial Slider

<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
<title>Bootstrap Client Testimonial Slider</title>
<link rel="stylesheet" href="https://fonts.googleapis.com/css?family=Open+Sans:300,400,700">
<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.5.0/css/bootstrap.min.css">
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/font-awesome/4.7.0/css/font-awesome.min.css">
<script src="https://code.jquery.com/jquery-3.5.1.min.js"></script>
<script src="https://cdn.jsdelivr.net/npm/popper.js@1.16.0/dist/umd/popper.min.js"></script>
<script src="https://stackpath.bootstrapcdn.com/bootstrap/4.5.0/js/bootstrap.min.js"></script>
<style type="text/css">
body {
	font-family: "Open Sans", sans-serif;
}
h2 {
	color: #000;
	font-size: 26px;
	font-weight: 300;
	position: relative;
	margin: 0 0 50px 0;
	text-transform: uppercase;
	display: inline-block;
}
h2::after {
	content: "";
	width: 50%;
	position: absolute;
	height: 4px;
	border-radius: 1px;
	background: #ff5555;
	left: 0;
	bottom: -20px;
}
.carousel {
	margin: 50px auto;
}
.carousel .carousel-item {
	color: #999;
	overflow: hidden;
    min-height: 120px;
	font-size: 13px;
}
.carousel .media {
	position: relative;
	padding: 0 0 0 20px;
	margin-left: 20px;
}
.carousel .media img {
	width: 75px;
	height: 75px;
	display: block;
	border-radius: 50%;
	box-shadow: 0 2px 4px rgba(0,0,0,0.2);
    border: 2px solid #fff;
}
.carousel .testimonial {
    color: #fff;
    position: relative;    
    background: #9b9b9b;
	padding: 15px;
	margin: 0 0 20px 20px;
}
.carousel .testimonial::before, .carousel .testimonial::after {
	content: "";
	display: inline-block;
	position: absolute;
	left: 0;
	bottom: -20px;
}
.carousel .testimonial::before {
    width: 20px;
    height: 20px;
	background: #9b9b9b;
	box-shadow: inset 12px 0 13px rgba(0,0,0,0.5);
}
.carousel .testimonial::after {
    width: 0;
    height: 0;
    border: 10px solid transparent;
    border-bottom-color: #fff;
    border-left-color: #fff;
}
.carousel .carousel-item .row > div:first-child .testimonial {
	margin: 0 20px 20px 0;
}
.carousel .carousel-item .row > div:first-child .media {
	margin-left: 0;
}
.carousel .testimonial p {
	text-indent: 40px;
    line-height: 21px;
	margin: 0;
}
.carousel .testimonial p::before {
	content: "\201D";
  	font-family: Arial,sans-serif;
    color: #fff;
    font-weight: bold;
    font-size: 68px;
    line-height: 70px;
    position: absolute;
    left: -25px;
    top: 0;
}
.carousel .overview {
	padding: 3px 0 0 15px;
}
.carousel .overview .details {
	padding: 5px 0 8px;
}
.carousel .overview b {
	text-transform: uppercase;
	color: #ff5555;
}
.carousel-control-prev, .carousel-control-next {
	width: 30px;
	height: 30px;
    background: #666;
    text-shadow: none;
	top: 4px;
}
.carousel-control-prev i, .carousel-control-next i {
	font-size: 16px;
}
.carousel-control-prev {
	left: auto;
	right: 40px;
}
.carousel-control-next {
	left: auto;
}
.carousel-indicators {
	bottom: -80px;
}
.carousel-indicators li, .carousel-indicators li.active {
	width: 17px;
    height: 17px;
	border-radius: 0;
	margin: 1px 5px;
  	box-sizing: border-box;
}
.carousel-indicators li {	
    background: #e2e2e2;
    border: 4px solid #fff;
}
.carousel-indicators li.active {
	color: #fff;
    background: #ff5555;
    border: 5px double;    
}
.star-rating li {
	padding: 0 2px;
}
.star-rating i {
	font-size: 14px;
	color: #ffdc12;
}
</style>
</head>
<body>
<div class="container-lg">
	<div class="row">
		<div class="col-sm-12">			
			<div id="myCarousel" class="carousel slide" data-ride="carousel">
				<h2>Customer <b>Testimonials</b></h2>
				
				<ol class="carousel-indicators">
					<li data-target="#myCarousel" data-slide-to="0" class="active"></li>
					<li data-target="#myCarousel" data-slide-to="1"></li>
					<li data-target="#myCarousel" data-slide-to="2"></li>
				</ol>   
				
				<div class="carousel-inner">
					<div class="carousel-item active">
						<div class="row">
							<div class="col-sm-6">
								<div class="testimonial">
									<p>Lorem ipsum dolor sit amet, consectetur adipiscing elit. Nam eu sem tempor, varius quam at, luctus dui. Mauris magna metus, dapibus nec turpis vel, semper malesuada ante.</p>
								</div>
								<div class="media">
									<img src="/examples/images/clients/1.jpg" class="mr-3" alt="">
									<div class="media-body">
										<div class="overview">
											<div class="name"><b>Paula Wilson</b></div>
											<div class="details">Media Analyst / SkyNet</div>
											<div class="star-rating">
												<ul class="list-inline">
													<li class="list-inline-item"><i class="fa fa-star"></i></li>
													<li class="list-inline-item"><i class="fa fa-star"></i></li>
													<li class="list-inline-item"><i class="fa fa-star"></i></li>
													<li class="list-inline-item"><i class="fa fa-star"></i></li>
													<li class="list-inline-item"><i class="fa fa-star-o"></i></li>
												</ul>
											</div>
										</div>										
									</div>
								</div>
							</div>
							<div class="col-sm-6">
								<div class="testimonial">
									<p>Vestibulum quis quam ut magna consequat faucibu. Eget mi suscipit tincidunt. Utmtc tempus dictum. Pellentesque virra. Quis quam ut magna consequat faucibus quam.</p>
								</div>
								<div class="media">
									<img src="/examples/images/clients/2.jpg" class="mr-3" alt="">
									<div class="media-body">
										<div class="overview">
											<div class="name"><b>Antonio Moreno</b></div>
											<div class="details">Web Developer / SoftBee</div>
											<div class="star-rating">
												<ul class="list-inline">
													<li class="list-inline-item"><i class="fa fa-star"></i></li>
													<li class="list-inline-item"><i class="fa fa-star"></i></li>
													<li class="list-inline-item"><i class="fa fa-star"></i></li>
													<li class="list-inline-item"><i class="fa fa-star"></i></li>
													<li class="list-inline-item"><i class="fa fa-star-o"></i></li>
												</ul>
											</div>
										</div>										
									</div>
								</div>
							</div>
						</div>			
					</div>
					<div class="carousel-item">
						<div class="row">
							<div class="col-sm-6">
								<div class="testimonial">
									<p>Lorem ipsum dolor sit amet, consectetur adipiscing elit. Nam eu sem tempor, varius quam at, luctus dui. Mauris magna metus, dapibus nec turpis vel, semper malesuada ante.</p>
								</div>
								<div class="media">
									<img src="/examples/images/clients/3.jpg" class="mr-3" alt="">
									<div class="media-body">
										<div class="overview">
											<div class="name"><b>Michael Holz</b></div>
											<div class="details">Web Developer / DevCorp</div>											
											<div class="star-rating">
												<ul class="list-inline">
													<li class="list-inline-item"><i class="fa fa-star"></i></li>
													<li class="list-inline-item"><i class="fa fa-star"></i></li>
													<li class="list-inline-item"><i class="fa fa-star"></i></li>
													<li class="list-inline-item"><i class="fa fa-star"></i></li>
													<li class="list-inline-item"><i class="fa fa-star-o"></i></li>
												</ul>
											</div>
										</div>										
									</div>
								</div>
							</div>
							<div class="col-sm-6">
								<div class="testimonial">
									<p>Vestibulum quis quam ut magna consequat faucibu. Eget mi suscipit tincidunt. Utmtc tempus dictum. Pellentesque virra. Quis quam ut magna consequat faucibus quam.</p>
								</div>
								<div class="media">
									<img src="/examples/images/clients/4.jpg" class="mr-3" alt="">
									<div class="media-body">
										<div class="overview">
											<div class="name"><b>Mary Saveley</b></div>
											<div class="details">Graphic Designer / MarsMedia</div>
											<div class="star-rating">
												<ul class="list-inline">
													<li class="list-inline-item"><i class="fa fa-star"></i></li>
													<li class="list-inline-item"><i class="fa fa-star"></i></li>
													<li class="list-inline-item"><i class="fa fa-star"></i></li>
													<li class="list-inline-item"><i class="fa fa-star"></i></li>
													<li class="list-inline-item"><i class="fa fa-star-o"></i></li>
												</ul>
											</div>
										</div>										
									</div>
								</div>
							</div>
						</div>			
					</div>
					<div class="carousel-item">
						<div class="row">
							<div class="col-sm-6">
								<div class="testimonial">
									<p>Lorem ipsum dolor sit amet, consectetur adipiscing elit. Nam eu sem tempor, varius quam at, luctus dui. Mauris magna metus, dapibus nec turpis vel, semper malesuada ante.</p>
								</div>
								<div class="media">
									<img src="/examples/images/clients/5.jpg" class="mr-3" alt="">
									<div class="media-body">
										<div class="overview">
											<div class="name"><b>Martin Sommer</b></div>
											<div class="details">SEO Analyst / RealSearch</div>
											<div class="star-rating">
												<ul class="list-inline">
													<li class="list-inline-item"><i class="fa fa-star"></i></li>
													<li class="list-inline-item"><i class="fa fa-star"></i></li>
													<li class="list-inline-item"><i class="fa fa-star"></i></li>
													<li class="list-inline-item"><i class="fa fa-star"></i></li>
													<li class="list-inline-item"><i class="fa fa-star-o"></i></li>
												</ul>
											</div>
										</div>										
									</div>
								</div>
							</div>
							<div class="col-sm-6">
								<div class="testimonial">
									<p>Vestibulum quis quam ut magna consequat faucibu. Eget mi suscipit tincidunt. Utmtc tempus dictum. Pellentesque virra. Quis quam ut magna consequat faucibus quam.</p>
								</div>
								<div class="media">
									<div class="media-left d-flex mr-3">
										<img src="/examples/images/clients/6.jpg" alt="">										
									</div>
									<div class="media-body">
										<div class="overview">
											<div class="name"><b>John Williams</b></div>
											<div class="details">Web Designer / UniqueDesign</div>
											<div class="star-rating">
												<ul class="list-inline">
													<li class="list-inline-item"><i class="fa fa-star"></i></li>
													<li class="list-inline-item"><i class="fa fa-star"></i></li>
													<li class="list-inline-item"><i class="fa fa-star"></i></li>
													<li class="list-inline-item"><i class="fa fa-star"></i></li>
													<li class="list-inline-item"><i class="fa fa-star-o"></i></li>
												</ul>
											</div>
										</div>										
									</div>
								</div>
							</div>
						</div>			
					</div>
				</div>
				
				<a class="carousel-control-prev" href="#myCarousel" data-slide="prev">
					<i class="fa fa-chevron-left"></i>
				</a>
				<a class="carousel-control-next" href="#myCarousel" data-slide="next">
					<i class="fa fa-chevron-right"></i>
				</a>
			</div>
		</div>
	</div>
</div>
</body>
</html>