Boostrap 3.2.0

HTML

<script src="http://netdna.bootstrapcdn.com/bootstrap/3.2.0/js/bootstrap.min.js"></script>
<link rel="stylesheet" href="http://netdna.bootstrapcdn.com/bootstrap/3.2.0/css/bootstrap.min.css">
<div id="myCarousel" class="carousel slide" data-ride="carousel">
  <!-- Indicators -->
  <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="item active">
       <img class="img-responsive" width="100%" height:"500px" src="http://lorempixel.com/992/500" data-src="/img/4a_slider_w992.png" alt="First slide" />
      <div class="container">
        <div class="carousel-caption">
          <h1>Another example headline.</h1>
          <p>Cras justo odio, dapibus ac facilisis in, egestas eget quam. Donec id elit non mi porta gravida at eget metus. Nullam id dolor id nibh ultricies vehicula ut id elit.</p>
          <p><a class="btn btn-lg btn-primary" href="#" role="button">Learn more</a></p>
        </div>
      </div>
    </div>
    </div>
  <!-- repeated -->
     <a class="left carousel-control" href="#myCarousel" role="button" data-slide="prev"><span class="glyphicon glyphicon-chevron-left"></span></a>
  <a class="right carousel-control" href="#myCarousel" role="button" data-slide="next"><span class="glyphicon glyphicon-chevron-right"></span></a>
</div><!-- /.carousel -->

CSS

/* Carousel base class */
 .carousel {
  margin-bottom: 20px;
  border-bottom: 1px solid #3f2416;
  z-index: 1000;
  margin-top:-50px !important;
  }

/* Since positioning the image, we need to help out the caption */
.carousel-caption {
 z-index: 10;
 top: 50px;
 }

/* Declare heights because of positioning of img element */
.carousel .item {
 height: 500px; //needed
 background-color: #777;
 width:100%;
 }

.carousel-inner>.item>img, .carousel-inner>.item>a>img{
    height: 100%;
    width: auto;
    max-width: none;
    margin: 0 auto;
}