.wp-block,
.wp-block-group {
    .has-h-1-font-size,
    .has-h-2-font-size,
    .has-h-3-font-size {
        strong {
            font-weight: 600;
        }
    }
}

:where(.wp-site-blocks) > * {
    margin-block-start: 0 !important;
}