Bootstrap carousel that keeps the image aspect ratio

Question

I have a bootstrap carousel on my website. I want to keep the image aspect ratio when resizing on smaller screens. How to do this?

Here's some code:

<!-- Carousel
================================================== -->
<div id="myCarousel" class="carousel slide">
  <div class="carousel-inner">
    <div class="item active">
      <img src="img/bg_good_sex2.jpg" class="img-responsive" alt="verslaafd-aan-porno-goede-seks">
      <div class="container">
        <div class="carousel-caption">
          <h1>Sex Coach <span class="text-primary"> App
          </span></h1>
          <p>Krijg controle op porno- of seksverslaving</p>
          <p><a href="<?php echo SSL_DOCUMENT_ROOT ?>/register.php" class="btn btn-lg btn-primary"><i class="icon-chevron-sign-right"></i> <?php echo START_BTN ?></a></p>
          <p><a href="<?php echo SSL_DOCUMENT_ROOT ?>/survey_me.php" class="btn btn-success btn-primary btn-lg"><i class="icon-edit"></i> <?php echo BTN_SURVEY_ME ?></a></p>
        </div>
      </div>
    </div>
  </div>
</div><!-- /.carousel -->

Thank you, Fred

Solution

Add the following styles to the <img>. This will keep the aspect ratio on large browsers.

max-width: 100%;
width: auto;
height: auto;
vertical-align: middle;

Another option is to use <div>'s with background images and use background-size: cover