themes-wordpress/programme/patterns/404.php

<?php
/**
 * Title: A 404 page
 * Slug: programme/404
 * Inserter: no
 */

?>

<!-- wp:group {"style":{"spacing":{"margin":{"top":"0px","bottom":"0px"}}},"layout":{"type":"constrained"}} -->
<div class="wp-block-group" style="margin-top:0px;margin-bottom:0px"><!-- wp:group {"align":"wide","layout":{"type":"constrained"}} -->
<div class="wp-block-group alignwide"><!-- wp:group {"style":{"spacing":{"padding":{"bottom":"2.1rem"}}},"layout":{"type":"default"}} -->
<div class="wp-block-group" style="padding-bottom:2.1rem"><!-- wp:group {"style":{"spacing":{"padding":{"bottom":"2.1rem"},"blockGap":"0rem"}},"layout":{"type":"flex","orientation":"vertical"}} -->
<div class="wp-block-group" style="padding-bottom:2.1rem"><!-- wp:heading {"textAlign":"left","textColor":"primary","anchor":"oops-that-page-can-t-be-found"} -->
<h2 class="wp-block-heading has-text-align-left has-primary-color has-text-color" id="oops-that-page-can-t-be-found"><?php echo esc_html__( 'Oops! That page can&rsquo;t be found.', 'programme' ); ?></h2>
<!-- /wp:heading -->

<!-- wp:heading -->
<h2 class="wp-block-heading"><?php echo esc_html__( 'Nothing was found at the location.', 'programme' ); ?></h2>
<!-- /wp:heading --></div>
<!-- /wp:group -->

<!-- wp:group {"align":"full","style":{"spacing":{"padding":{"top":"0px","right":"0px","bottom":"5.6rem","left":"0px"}}},"layout":{"type":"default"}} -->
<div class="wp-block-group alignfull" style="padding-top:0px;padding-right:0px;padding-bottom:5.6rem;padding-left:0px"><!-- wp:heading {"align":"full","style":{"typography":{"textTransform":"lowercase"}}} -->
<h2 class="wp-block-heading alignfull" style="text-transform:lowercase"><?php echo esc_html__( 'search', 'programme' ); ?></h2>
<!-- /wp:heading -->

<!-- wp:spacer {"height":"0.7rem","style":{"spacing":{"margin":{"top":"0px","bottom":"0px"}}}} -->
<div style="margin-top:0px;margin-bottom:0px;height:0.7rem" aria-hidden="true" class="wp-block-spacer"></div>
<!-- /wp:spacer -->

<!-- wp:search {"showLabel":false,"width":100,"widthUnit":"%","buttonPosition":"button-inside","buttonUseIcon":true,"style":{"border":{"radius":"0px","top":{"color":"var:preset|color|secondary","style":"solid","width":"2px"},"right":{"color":"var:preset|color|secondary","style":"solid","width":"2px"},"bottom":{"color":"var:preset|color|secondary","style":"solid","width":"2px"},"left":{"color":"var:preset|color|secondary","style":"solid","width":"2px"}}},"textColor":"background"} /--></div>
<!-- /wp:group --></div>
<!-- /wp:group --></div>
<!-- /wp:group --></div>
<!-- /wp:group -->