diff --git a/parts/404.html b/parts/404.html
index 0f4975d..4379243 100644
--- a/parts/404.html
+++ b/parts/404.html
@@ -1,39 +1,43 @@
 <!-- wp:oik-sb/sb-debug-block /-->
 
+<!-- wp:oik-sb/sb-debug-block /-->
+
 <!-- wp:html -->
-<div class="WP_DEBUG">404 template-part</div>
+<div class="WP_DEBUG">404 template-part - the old method</div>
 <!-- /wp:html -->
 
-<!-- wp:heading -->
-<h2>Not Found </h2>
-<!-- /wp:heading -->
-
-<!-- wp:paragraph -->
-<p>Whatever you were looking for either isn't there any more or perhaps never was.</p>
-<!-- /wp:paragraph -->
-
-<!-- wp:paragraph -->
-<p>Do you want to try again?</p>
-<!-- /wp:paragraph -->
-
-<!-- wp:paragraph -->
-<p>Maybe do a search?</p>
-<!-- /wp:paragraph -->
-
-<!-- wp:buttons -->
-<div class="wp-block-buttons"><!-- wp:button {"backgroundColor":"vivid-cyan-blue"} -->
-    <div class="wp-block-button"><a class="wp-block-button__link has-vivid-cyan-blue-background-color has-background" href="https://s.b/wp55/thisis/site-editor-beta/">Site Editor beta</a></div>
-    <!-- /wp:button -->
-
-    <!-- wp:button {"backgroundColor":"site-header-background"} -->
-    <div class="wp-block-button"><a class="wp-block-button__link has-site-header-background-background-color has-background" href="https://s.b/wp55/thisis/blocks/">Blocks</a></div>
-    <!-- /wp:button -->
-
-    <!-- wp:button {"backgroundColor":"darker-gray","className":"is-style-fill"} -->
-    <div class="wp-block-button is-style-fill"><a class="wp-block-button__link has-darker-gray-background-color has-background" href="https://s.b/wp55/thisis/themes/">Themes</a></div>
-    <!-- /wp:button -->
-
-    <!-- wp:button {"className":"is-style-outline"} -->
-    <div class="wp-block-button is-style-outline"><a class="wp-block-button__link" href="https://s.b/wp55/thisis/sitemap/">Sitemap</a></div>
-    <!-- /wp:button --></div>
-<!-- /wp:buttons -->
\ No newline at end of file
+<!-- wp:group {"layout":{"inherit":true}} -->
+<div class="wp-block-group"><!-- wp:heading -->
+    <h2 id="not-found">Not Found </h2>
+    <!-- /wp:heading -->
+
+    <!-- wp:paragraph -->
+    <p>Whatever you were looking for either isn't there any more or perhaps never was.</p>
+    <!-- /wp:paragraph -->
+
+    <!-- wp:paragraph -->
+    <p>Do you want to try again?</p>
+    <!-- /wp:paragraph -->
+
+    <!-- wp:paragraph -->
+    <p>Maybe do a search?</p>
+    <!-- /wp:paragraph -->
+
+    <!-- wp:buttons -->
+    <div class="wp-block-buttons"><!-- wp:button {"backgroundColor":"vivid-cyan-blue"} -->
+        <div class="wp-block-button"><a class="wp-block-button__link has-vivid-cyan-blue-background-color has-background" href="https://s.b/wp55/thisis/site-editor-beta/">Site Editor beta</a></div>
+        <!-- /wp:button -->
+
+        <!-- wp:button {"backgroundColor":"site-header-background"} -->
+        <div class="wp-block-button"><a class="wp-block-button__link has-site-header-background-background-color has-background" href="https://s.b/wp55/thisis/blocks/">Blocks</a></div>
+        <!-- /wp:button -->
+
+        <!-- wp:button {"backgroundColor":"darker-gray","className":"is-style-fill"} -->
+        <div class="wp-block-button is-style-fill"><a class="wp-block-button__link has-darker-gray-background-color has-background" href="https://s.b/wp55/thisis/themes/">Themes</a></div>
+        <!-- /wp:button -->
+
+        <!-- wp:button {"className":"is-style-outline"} -->
+        <div class="wp-block-button is-style-outline"><a class="wp-block-button__link" href="https://s.b/wp55/thisis/sitemap/">Sitemap</a></div>
+        <!-- /wp:button --></div>
+    <!-- /wp:buttons --></div>
+<!-- /wp:group -->
\ No newline at end of file