index.php wordpress twentyseventeen

<?php
/**
 * The main template file
 *
 * This is the most generic template file in a WordPress theme
 * and one of the two required files for a theme (the other being style.css).
 * It is used to display a page when nothing more specific matches a query.
 * E.g., it puts together the home page when no home.php file exists.
 *
 * @link https://codex.wordpress.org/Template_Hierarchy
 *
 * @package WordPress
 * @subpackage Twenty_Seventeen
 * @since 1.0
 * @version 1.0
 */

get_header(); ?>

<div class="wrap">
    <?php if ( is_home() && ! is_front_page() ) : ?>
        <header class="page-header">
            <h1 class="page-title"><?php single_post_title(); ?></h1>
        </header>
    <?php else : ?>
    <header class="page-header">
        <h2 class="page-title"><?php _e( 'Posts', 'twentyseventeen' ); ?></h2>
    </header>
    <?php endif; ?>

    <div id="primary" class="content-area">
        <main id="main" class="site-main" role="main">

            <?php
            // The Args
            $args = array(
                'category__not_in' => array(18)
            );
            // The Query
            query_posts( $args );

            if ( have_posts() ) :

                /* Start the Loop */
                while ( have_posts() ) : the_post();

                    /*
                     * Include the Post-Format-specific template for the content.
                     * If you want to override this in a child theme, then include a file
                     * called content-___.php (where ___ is the Post Format name) and that will be used instead.
                     */
                    get_template_part( 'template-parts/post/content', get_post_format() );

                endwhile;

                the_posts_pagination( array(
                    'prev_text' => twentyseventeen_get_svg( array( 'icon' => 'arrow-left' ) ) . '<span class="screen-reader-text">' . __( 'Previous page', 'twentyseventeen' ) . '</span>',
                    'next_text' => '<span class="screen-reader-text">' . __( 'Next page', 'twentyseventeen' ) . '</span>' . twentyseventeen_get_svg( array( 'icon' => 'arrow-right' ) ),
                    'before_page_number' => '<span class="meta-nav screen-reader-text">' . __( 'Page', 'twentyseventeen' ) . ' </span>',
                ) );

            else :

                get_template_part( 'template-parts/post/content', 'none' );

            endif;
            ?>

        </main><!-- #main -->
    </div><!-- #primary -->
    <?php get_sidebar(); ?>
</div><!-- .wrap -->

<?php get_footer();