themes-wordpress/pieria/templates/404.html

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<div class="wp-block-columns alignfull" style="margin-top:0px;margin-bottom:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px"><!-- wp:column {"width":"20%","style":{"spacing":{"padding":{"top":"0rem","right":"2rem","bottom":"0rem","left":"2rem"}}}} -->
<div class="wp-block-column" style="padding-top:0rem;padding-right:2rem;padding-bottom:0rem;padding-left:2rem;flex-basis:20%"><!-- wp:group {"style":{"spacing":{"padding":{"top":"0px","right":"0px","bottom":"0px","left":"0px"},"margin":{"top":"0px","bottom":"0px"},"blockGap":"0px"},"position":{"type":"sticky","top":"0px"}},"layout":{"type":"constrained"}} -->
<div class="wp-block-group" style="margin-top:0px;margin-bottom:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px"><!-- wp:spacer {"height":"4rem","style":{"spacing":{"margin":{"top":"0px","bottom":"0px"}}}} -->
<div style="margin-top:0px;margin-bottom:0px;height:4rem" aria-hidden="true" class="wp-block-spacer"></div>
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<!-- wp:group {"style":{"spacing":{"blockGap":"0rem","padding":{"top":"0rem","right":"0rem","bottom":"0rem","left":"0rem"},"margin":{"top":"0px","bottom":"0px"}}},"layout":{"type":"flex","orientation":"vertical"}} -->
<div class="wp-block-group" style="margin-top:0px;margin-bottom:0px;padding-top:0rem;padding-right:0rem;padding-bottom:0rem;padding-left:0rem"><!-- wp:site-title {"style":{"typography":{"fontSize":"16px","textDecoration":"underline"}}} /-->

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<div style="margin-top:0px;margin-bottom:0px;height:2rem" aria-hidden="true" class="wp-block-spacer"></div>
<!-- /wp:spacer -->

<!-- wp:navigation {"overlayMenu":"never","layout":{"type":"flex","orientation":"vertical"},"style":{"spacing":{"blockGap":"0px"}}} /--></div>
<!-- /wp:group --></div>
<!-- /wp:group --></div>
<!-- /wp:column -->

<!-- wp:column {"width":"60%","style":{"spacing":{"padding":{"top":"0rem","right":"2rem","bottom":"0rem","left":"2rem"},"blockGap":"0px"},"border":{"left":{"color":"var:preset|color|primary","width":"1px"}}},"layout":{"type":"constrained","justifyContent":"left"}} -->
<div class="wp-block-column" style="border-left-color:var(--wp--preset--color--primary);border-left-width:1px;padding-top:0rem;padding-right:2rem;padding-bottom:0rem;padding-left:2rem;flex-basis:60%"><!-- wp:spacer {"height":"4rem","style":{"spacing":{"margin":{"top":"0px","bottom":"0px"}}}} -->
<div style="margin-top:0px;margin-bottom:0px;height:4rem" aria-hidden="true" class="wp-block-spacer"></div>
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<!-- wp:group {"tagName":"main","style":{"spacing":{"blockGap":"var:preset|spacing|50","margin":{"top":"var:preset|spacing|80","bottom":"var:preset|spacing|60"}}},"layout":{"type":"constrained"}} -->
<main class="wp-block-group" style="margin-top:var(--wp--preset--spacing--80);margin-bottom:var(--wp--preset--spacing--60)">

<!-- wp:pattern {"slug":"pieria/404"} /-->

</main>
<!-- /wp:group --></div>
<!-- /wp:column -->

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<div class="wp-block-column" style="border-left-color:var(--wp--preset--color--primary);border-left-width:1px;padding-top:0rem;padding-right:2rem;padding-bottom:0rem;padding-left:2rem;flex-basis:20%"><!-- wp:group {"style":{"spacing":{"padding":{"top":"0px","right":"0px","bottom":"0px","left":"0px"},"margin":{"top":"0px","bottom":"0px"},"blockGap":"0px"},"position":{"type":"sticky","top":"0px"}},"layout":{"type":"constrained"}} -->
<div class="wp-block-group" style="margin-top:0px;margin-bottom:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px"><!-- wp:spacer {"height":"4rem","style":{"spacing":{"margin":{"top":"0px","bottom":"0px"}}}} -->
<div style="margin-top:0px;margin-bottom:0px;height:4rem" aria-hidden="true" class="wp-block-spacer"></div>
<!-- /wp:spacer -->

<!-- wp:pattern {"slug":"pieria/sidebar"} /-->

<!-- wp:spacer {"height":"4rem","style":{"spacing":{"margin":{"top":"0px","bottom":"0px"}}}} -->
<div style="margin-top:0px;margin-bottom:0px;height:4rem" aria-hidden="true" class="wp-block-spacer"></div>
<!-- /wp:spacer --></div>
<!-- /wp:group --></div>
<!-- /wp:column --></div>
<!-- /wp:columns -->