title: How to Solve Option Select appeared behind modal using bootstrap?
body: <p>I was making form on modal using bootstrap, and why when i used select tag and it's appeared in behind model? like this, sorry my English is bad..</p>
  
  <pre><code>&lt;a href="#regis_card" data-toggle="modal"&gt;&lt;i class="icon icon-inbox"&gt;&lt;/i&gt; &lt;span&gt;Registrasi Card&lt;/span&gt;&lt;/a&gt;
  </code></pre>
  
  <p>And this is the modal</p>
  
  <pre><code>&lt;div class="modal fade" id="regis_card" tabindex="-1" role="dialog" aria-labelledby="myModalLabel" aria-hidden="true"&gt;
      &lt;form action="?page=card/add" method="POST" class="form-horizontal"&gt;
      &lt;div class="modal-header"&gt;
          &lt;button data-dismiss="modal" class="close" type="button"&gt;×&lt;/button&gt;
          &lt;h3&gt;Registrasi Data Card&lt;/h3&gt;
      &lt;/div&gt;
      &lt;div class="modal-body"&gt;
          &lt;div class="widget-content nopadding"&gt;
  
              &lt;div class="control-group"&gt;
                  &lt;div class="row row-fluid"&gt;
  
                      &lt;label class="control-label"&gt;Pemilik :&lt;/label&gt;
                      &lt;div class="controls"&gt;
                          &lt;select class="span12" name="id_tenant"&gt;
                          &lt;?php
                          $query_tenant = mysqli_query($koneksi, "select * from tenant");
                          while ($data_tenant = mysqli_fetch_array($query_tenant)){ ?&gt;
                              &lt;option value="&lt;?php echo $data_tenant['id_tenant'];?&gt;" &gt;&lt;?php echo $data_tenant['nama_lengkap']." - ".$data_tenant['NIT'];?&gt;&lt;/option&gt;
                          &lt;?php
                          }
                          ?&gt;
                          &lt;/select&gt;
                      &lt;/div&gt;
                  &lt;/div&gt;
              &lt;/div&gt;
  
          &lt;/div&gt;
      &lt;/div&gt;
      &lt;div class="modal-footer"&gt;
          &lt;a data-dismiss="modal" class="btn btn-inverse" href="#"&gt;Cancel&lt;/a&gt; 
          &lt;button class="btn btn-primary" type="submit"&gt;Simpan&lt;/button&gt;
      &lt;/div&gt;
      &lt;/form&gt;
  &lt;/div&gt;
  </code></pre>