d><td><small class="var-tag">duration</small></td><td><code>750ms</code></td></tr>
                            <tr><td><code>$shadow</code></td><td><small class="var-tag">shadow</small></td><td><code>0 0.5em 1em -0.125em rgba($black, .2), 0 0px 0 1px rgba($black, 0.02)</code></td></tr>
                            <tr><td><code>$variable-columns</code></td><td><small class="var-tag">boolean</small></td><td><code>false</code></td></tr>
                        </tbody>
                    </table>
            