h1:where(.wp-block-heading).has-background, h2:where(.wp-block-heading).has-background, h3:where(.wp-block-heading).has-background, h4:where(.wp-block-heading).has-background, h5:where(.wp-block-heading).has-background, h6:where(.wp-block-heading).has-background {padding:1.25em 2.375em}