.wp-block-post-content > * {
    margin-block-start: var(--space-150);
    margin-block-end: 0;
}

.wp-block-post-content.is-layout-constrained > *:not(p) {
    margin-block-start: var(--space-300);
}

.wp-block-group-is-layout-constrained > :where(p, ul, ol, blockquote) {
    margin-block-start: var(--space-150);
}

:root :where(.wp-block-post-excerpt) {
    margin-bottom: 0;
}