 <div>
          <a class="btn btn-small">Button</a>
          <a class="btn btn-small"><i class="icon-building icon-large"></i> Button</a>
          <a class="btn btn-small"><i class="icon-building icon-large"></i></a>
        </div>
        <div>
          <a class="btn">Button</a>
          <a class="btn"><i class="icon-building icon-large"></i> Button</a>
          <a class="btn"><i class="icon-building icon-large"></i></a>
        </div>
        <div>
          <a class="btn btn-large">Button</a>
     