themes-wordpress/calyx/parts/header.html

<!-- wp:group {"style":{"spacing":{"padding":{"right":"var:preset|spacing|40","left":"var:preset|spacing|40"}}},"className":"gapless-group","layout":{"inherit":"true","type":"constrained"}} -->
<div class="wp-block-group gapless-group" style="padding-right:var(--wp--preset--spacing--40);padding-left:var(--wp--preset--spacing--40)"><!-- wp:group {"align":"full","style":{"spacing":{"padding":{"bottom":"var(td-wp--custom--gap--vertical)","top":"var(--wp--custom--gap--vertical)"}}},"layout":{"type":"flex","justifyContent":"space-between"}} -->
<div class="wp-block-group alignfull" style="padding-top:var(--wp--custom--gap--vertical);padding-bottom:var(td-wp--custom--gap--vertical)"><!-- wp:group {"layout":{"type":"flex"}} -->
<div class="wp-block-group"><!-- wp:site-logo {"width":64} /-->

<!-- wp:group {"style":{"spacing":{"blockGap":"0px"}}} -->
<div class="wp-block-group"><!-- wp:site-title /-->

<!-- wp:site-tagline /--></div>
<!-- /wp:group --></div>
<!-- /wp:group -->

<!-- wp:navigation {"overlayMenu":"always","layout":{"type":"flex","setCascadingProperties":true,"justifyContent":"space-between","orientation":"horizontal","flexWrap":"nowrap"},"style":{"spacing":{"margin":{"top":"0"}}}} /--></div>
<!-- /wp:group --></div>
<!-- /wp:group -->

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