 <?php
                    echo '<form action="" id="df_app_builder" method="post">
                <div class="field-space">
                        <label for="app_btn_link">Slider or Video ID:</label>
                        <input type="text" name="app_btn_link" id="app_btn_link" size="22" value="" required /></div><br>
                        <input type="hidden" name="app_btn_title" id="app_btn_title" value="LayerSlider" />
                        <input type="hidden" name="df_app_name" id="df_app_name" value="'.$df_app_name.'" />
        <input type="hidden" name="app_btn_bkg_color1" id="app_btn_bkg_color1" value="'.$btn_bkg_color1.'" />
        <input type="hidden" name="app_btn_bkg_color2" id="app_btn_bkg_color2" value="'.$btn_bkg_color2.'" />
        <input type="hidden" name="app_btn_bkg_color3" id="app_btn_bkg_color3" value="'.$btn_bkg_color3.'" />
        <input type="hidden" name="df_app_oxy" id="df_app_oxy" value="'.$df_app_oxy.'" />
                        <button type="df_app_data" name="df_app_data">Add Slider or Video</button>
                        </form>';
            ?>