ss="row">
    <div class="span6">
      <div style="border: solid 1px #d3d3d3; text-align: center;">
        <div>
          <button class="btn btn-mini">Button</button>
          <button class="btn btn-mini"><i class="icon-circle"></i> Button</button>
          <button class="btn btn-mini"><i class="icon-circle"></i></button>
        </div>
        <div>
          <button class="btn btn-small">Button</button>
          <button class="btn btn-small"><i class="icon-circle"></i> Button</button>
          <but