title: button vertical align bootstrap
body: <p>I'm trying to align a button in a simple form..</p>
  
  <p>I did this:</p>
  
  <pre><code>&lt;div class="panel panel-default"&gt;
            &lt;div class="panel-heading"&gt;teste&lt;/div&gt;
              &lt;div class="panel-body"&gt;
                  &lt;div class="row"&gt;
                      &lt;div class="col-lg-6" style="padding-right:20px; border-right: 1px solid #ccc;"&gt;
                         &lt;label class="form-control"&gt; Teste&lt;/label&gt;
                          &lt;input type="button" class="form-control btn-danger" value="example" /&gt;&lt;br/&gt;
                           &lt;input type="button" class="form-control btn-danger" value="example" /&gt;&lt;br/&gt;
                           &lt;input type="button" class="form-control btn-danger" value="example" /&gt;&lt;br/&gt;
                           &lt;input type="button" class="form-control btn-danger" value="example" /&gt;&lt;br/&gt;
                      &lt;/div&gt;
                      &lt;div class="col-lg-6"  style="margin:0 auto;"  &gt;
                              &lt;input type="button"   value="botão" /&gt;
                       &lt;/div&gt;
                        &lt;/div&gt;
              &lt;/div&gt;
          &lt;/div&gt;
  </code></pre>
  
  <p><img src="https://i.stack.imgur.com/W5wcW.png" alt="enter image description here"></p>
  
  <p>but I want this button to be centered as shown in the following image:</p>
  
  <p><img src="https://i.stack.imgur.com/TxqR5.png" alt="enter image description here"></p>
  
  <p>how can i do that? i used "style="margin:0 auto;" on div but didn't work..</p>