This is similar to nested spans, but here the outer element is a
paragraph.

Change-Id: Ibcdfe5aac54a44797067b06d319d19d2d47d5dd1
Reviewed-on: https://gerrit.libreoffice.org/42104Reviewed-by: Miklos Vajna <vmiklos@collabora.co.uk>
Tested-by: Jenkins <ci@libreoffice.org>