that you use these button types over the specific HTML5 or Flash button
                types. These are: <a href=
                                             "//datatables.net/reference/button/copy"><code class="button"
                                                                                            title="Buttons button type">copy</code></a>,
                <a href=
                           "//datatables.net/reference/button/csv"><code class="button"
                                        