 btn-sm"><span class="glyphicon glyphicon-star"></span> Star</button>
      <button type="button" class="btn btn-default btn-xs"><span class="glyphicon glyphicon-star"></span> Star</button>
    </div>
  </div>
{% highlight html %}
<button type="button" class="btn btn-default btn-lg">
  <span class="glyphicon glyphicon-star"></span> Star
</button>
{% endhighlight %}
</div>
