Progress Bars - Animated

Add .active to .progress-striped to animate the stripes right to left. Not available in all versions of IE.

45% Complete 
<div class="progress progress-striped active">
    <div class="progress-bar"  role="progressbar" aria-valuenow="45" aria-valuemin="0" aria-valuemax="100" style="width: 45%">
      <span class="sr-only">45% Complete</span>
    </div>
  </div>