<!-- wp:buttons -->
<div class="wp-block-buttons"><!-- wp:button {"className":"is-style-outline"} -->
<div class="wp-block-button is-style-outline"><a class="wp-block-button__link wp-element-button"></a></div>
<!-- /wp:button --></div>
<!-- /wp:buttons -->

<!-- wp:paragraph -->
<p>test</p>
<!-- /wp:paragraph -->

<!-- wp:paragraph -->
<p></p>
<!-- /wp:paragraph -->