themes-wordpress/nested/parts/header-single.html

<!-- wp:group {"style":{"spacing":{"margin":{"top":"4rem","bottom":"4rem"}}},"layout":{"type":"constrained"}} -->
<div class="wp-block-group" style="margin-top:4rem;margin-bottom:4rem"><!-- wp:group {"layout":{"type":"flex","flexWrap":"nowrap","justifyContent":"space-between"}} -->
<div class="wp-block-group"><!-- wp:site-title {"style":{"typography":{"letterSpacing":"0px","fontStyle":"normal","fontWeight":"600","textTransform":"uppercase","lineHeight":"1","fontSize":"1.5rem"},"elements":{"link":{"color":{"text":"var:preset|color|primary"}}}},"textColor":"primary"} /-->

<!-- wp:social-links {"iconColor":"primary","iconColorValue":"#000000","size":"has-small-icon-size","className":"is-style-logos-only"} -->
<ul class="wp-block-social-links has-small-icon-size has-icon-color is-style-logos-only"><!-- wp:social-link {"url":"wordpress.org","service":"tumblr"} /-->

<!-- wp:social-link {"url":"wordpress.org","service":"linkedin"} /-->

<!-- wp:social-link {"url":"wordpress.org","service":"github"} /--></ul>
<!-- /wp:social-links --></div>
<!-- /wp:group -->

<!-- wp:group {"style":{"spacing":{"margin":{"top":"8rem"}}},"layout":{"type":"constrained"}} -->
<div class="wp-block-group" style="margin-top:8rem"><!-- wp:post-title {"level":1,"style":{"typography":{"textTransform":"none"}}} /--></div>
<!-- /wp:group --></div>
<!-- /wp:group -->