404.php

<?php
 get_header(); ?>

	<main id="primary" class="site-main">

		<section class="error-404 not-found">
			<header class="page-header">
				<h1 class="page-title"><?php esc_html_e( 'Oops! That page can&rsquo;t be found.', 'blanksmall' ); ?></h1>
			</header><!-- .page-header -->

			<div class="page-content">
				<p><?php esc_html_e( 'It looks like nothing was found at this location. Maybe try one of the links below or a search?', 'blanksmall' ); ?></p>

					<?php
 get_search_form(); the_widget( 'WP_Widget_Recent_Posts' ); ?>

					<div class="widget widget_categories">
						<h2 class="widget-title"><?php esc_html_e( 'Most Used Categories', 'blanksmall' ); ?></h2>
						<ul>
							<?php
 wp_list_categories( array( 'orderby' => 'count', 'order' => 'DESC', 'show_count' => 1, 'title_li' => '', 'number' => 10, ) ); ?>
						</ul>
					</div><!-- .widget -->

					<?php
 $blanksmall_archive_content = '<p>' . sprintf( esc_html__( 'Try looking in the monthly archives. %1$s', 'blanksmall' ), convert_smilies( ':)' ) ) . '</p>'; the_widget( 'WP_Widget_Archives', 'dropdown=1', "after_title=</h2>$blanksmall_archive_content" ); the_widget( 'WP_Widget_Tag_Cloud' ); ?>

			</div><!-- .page-content -->
		</section><!-- .error-404 -->

	</main><!-- #main -->

<?php
get_footer();