themes-wordpress/kansei/templates/404.html

<!-- wp:group {"style":{"dimensions":{"minHeight":"100vh"},"spacing":{"padding":{"top":"var:preset|spacing|60","right":"var:preset|spacing|80","bottom":"var:preset|spacing|80","left":"var:preset|spacing|80"}}},"layout":{"type":"constrained"}} -->
<div class="wp-block-group" style="min-height:100vh;padding-top:var(--wp--preset--spacing--60);padding-right:var(--wp--preset--spacing--80);padding-bottom:var(--wp--preset--spacing--80);padding-left:var(--wp--preset--spacing--80)">
	<!-- wp:template-part {"slug":"header","tagName":"header"} /-->

	<!-- wp:spacer {"height":"50px"} -->
	<div style="height:50px" aria-hidden="true" class="wp-block-spacer"></div>
	<!-- /wp:spacer -->

	<!-- wp:group {"style":{"dimensions":{"minHeight":"75vh"}},"layout":{"type":"constrained"}} -->
	<div class="wp-block-group" style="min-height:75vh">
		<!-- wp:columns -->
		<div class="wp-block-columns">
			<!-- wp:column {"width":"40%"} -->
			<div class="wp-block-column" style="flex-basis:40%"></div>
			<!-- /wp:column -->

			<!-- wp:column {"verticalAlignment":"top","width":"60%"} -->
			<div class="wp-block-column is-vertically-aligned-top" style="flex-basis:60%">
				<!-- wp:group {"style":{"spacing":{"padding":{"right":"var:preset|spacing|80"}}},"layout":{"type":"constrained"}} -->
				<div class="wp-block-group" style="padding-right:var(--wp--preset--spacing--80)">
					<!-- wp:pattern {"slug":"kansei/404"} /-->

					<!-- wp:spacer {"height":"50px"} -->
					<div style="height:50px" aria-hidden="true" class="wp-block-spacer"></div>
					<!-- /wp:spacer -->

					<!-- wp:pattern {"slug":"kansei/search-field"} /-->
				</div>
				<!-- /wp:group -->
			</div>
			<!-- /wp:column --></div>
<!-- /wp:columns --></div>
<!-- /wp:group -->

<!-- wp:template-part {"slug":"footer"} /--></div>
<!-- /wp:group -->