Example of attachment.php

attachment.php

<?php
/**
 * The Template for displaying all single posts.
 *
 * @package GeneratePress
 */

if ( ! defined( 'ABSPATH' ) ) {
	exit; // Exit if accessed directly.
}

get_header(); ?>

	<div id="primary" <?php generate_do_element_classes( 'content' ); ?>>
		<main id="main" <?php generate_do_element_classes( 'main' ); ?>>
			<?php
			/**
			 * generate_before_main_content hook.
			 *
			 * @since 0.1
			 */
			do_action( 'generate_before_main_content' );

			while ( have_posts() ) : the_post();

				?>
				  <article id="post-<?php the_ID(); ?>" <?php post_class(); ?> <?php generate_do_microdata( 'article' ); ?>>
				    <div class="inside-article">
				      <?php
				      /**
				       * generate_before_content hook.
				       *
				       * @since 0.1
				       *
				       * @hooked generate_featured_page_header_inside_single - 10
				       */
				      do_action( 'generate_before_content' );
				      ?>

				      <header class="entry-header">
					<?php
					/**
					 * generate_before_entry_title hook.
					 *
					 * @since 0.1
					 */
					do_action( 'generate_before_entry_title' );

					if ( generate_show_title() ) {
					  the_title( '<h1 class="entry-title" itemprop="headline">', '</h1>' );
					}

					/**
					 * generate_after_entry_title hook.
					 *
					 * @since 0.1
					 *
					 * @hooked generate_post_meta - 10
					 */
					do_action( 'generate_after_entry_title' );
					?>
				      </header><!-- .entry-header -->

				      <?php
				      /**
				       * generate_after_entry_header hook.
				       *
				       * @since 0.1
				       *
				       * @hooked generate_post_image - 10
				       */
				      do_action( 'generate_after_entry_header' );
				      ?>

				      <div class="entry-content" itemprop="text">
					<?php
					the_content();

					wp_link_pages( array(
					  'before' => '<div class="page-links">' . __( 'Pages:', 'generatepress' ),
					  'after'  => '</div>',
					) );
					?>
				      </div><!-- .entry-content -->

				      <?php
				      /**
				       * generate_after_entry_content hook.
				       *
				       * @since 0.1
				       *
				       * @hooked generate_footer_meta - 10
				       */
				      do_action( 'generate_after_entry_content' );

				      /**
				       * generate_after_content hook.
				       *
				       * @since 0.1
				       */
				      do_action( 'generate_after_content' );
				      ?>
				    </div><!-- .inside-article -->
				  </article><!-- #post-## -->
				<?php

				// If comments are open or we have at least one comment, load up the comment template.
				if ( comments_open() || '0' != get_comments_number() ) :
					/**
					 * generate_before_comments_container hook.
					 *
					 * @since 2.1
					 */
					do_action( 'generate_before_comments_container' );
					?>

					<div class="comments-area">
						<?php comments_template(); ?>
					</div>

					<?php
				endif;

			endwhile;

			/**
			 * generate_after_main_content hook.
			 *
			 * @since 0.1
			 */
			do_action( 'generate_after_main_content' );
			?>
		</main><!-- #main -->
	</div><!-- #primary -->

	<?php
	/**
	 * generate_after_primary_content_area hook.
	 *
	 * @since 2.0
	 */
	do_action( 'generate_after_primary_content_area' );

	generate_construct_sidebars();

get_footer();