Add blog article content style (optional: future feature)

[ralf401]

[dvuckovic]

@ralf401 Is this really needed now, or is this something for the "far future"?

[ralf401]

@dvuckovic I think we don't need this at the moment, more for the far future. From my point of view, priority should be to keep the content up to date and focus on the migration. If you have a different opinion, I'm open for suggestions, of course.