</h4>
    <p>Alerts don't have default classes, only base and modifier classes. A default gray alert doesn't make too much sense, so you're required to specify a type via contextual class. Choose from success, info, warning, or danger.</p>
  </div>

  <div class="bs-example">
    <div class="alert alert-success" role="alert">
      <strong>Well done!</strong> You successfully read this important alert message.
    </div>
    <div class="alert alert-info" role="alert">
      <strong>Heads up!</strong> This a