Simple markup for adding captions and credits to images with Twitter Bootstrap.

bootstrap-photo-with-caption.html

<style>
  .thumbnail.with-caption {
    display: inline-block;
    background: #f5f5f5;
  }
  .thumbnail.with-caption p {
    margin: 0;
    padding-top: 0.5em;
  }
  .thumbnail.with-caption small:before {
    content: '\2014 \00A0';
  }
  .thumbnail.with-caption small {
    width: 100%;
    text-align: right;
    display: inline-block;
    color: #999;
  }
</style>

<div class="thumbnail with-caption">
  <img src="http://img.youtube.com/vi/IJNR2EpS0jw/0.jpg" width="320">
  <p>Dumb ways to die<small>Metro</small></p>
</div>