P containers and span headlines

Currently a headline can be a paragraph, but not a container. Headlines can have inline width, but not be a span tag and divs are not allowed withing paragraphs according to standards.

If we had paragraph containers and span headlines it would be possible to build sentences from dynamic data, while inheriting the same styles as if it was static text.

The current workarounds are using div tags for both container and headlines, but that would require duplicating paragraph style from the theme. If that change in the GP customizer, the GB content will look wrong.

Another workaround is using shortcodes but these do not work in query loop blocks.