Announcement Customizer & HTML

gistfile1.phtml

        if ( current_theme_supports( 'announcement' ) ) {

                function announcement_customizer( $wp_customize ) {
                        $wp_customize->add_section( 'announcement', array(
                                        'title'                 => __( 'Announcement' ),
                                        'description'           => __( 'A summary of this page will appear in the header area of your website.' ),
                                        'priority'              => 64,
                                )
                        );
                        $wp_customize->add_setting( 'announcement_page', array(
                                        'type'                  => 'option',
                                        'sanitize_callback'     => 'absint',
                                )
                        );
                         
                        $wp_customize->add_control( 'announcement_page', array(
                                        //'label'                 => __( 'Select a page' ),                                         
                                        'type'                  => 'dropdown-pages', 
                                        'section'               => 'announcement',
                                )
                        );
                }
                add_action( 'customize_register', 'announcement_customizer' );

                function announcement_html() {
                        $page_id = get_option( 'announcement_page' );
                                
                        if ( $page_id ) {
                                $args = array(
                                        'page_id' => $page_id,
                                );
                                $primary = new WP_Query( $args );
                                if ( $primary->have_posts() ) : ?>
                                        <div class="announcement">
                                                <div class="container">
                                                        <?php while ( $primary->have_posts() ) : $primary->the_post(); ?>
                                                                <article><?php the_excerpt(); ?></article>
                                                        <?php endwhile; ?>
                                                        <?php wp_reset_postdata(); ?>
                                                </div>
                                        </div><?php
                                endif;
                        }

                }

        }