Fix nit with tag display

Fix problem where articles with long lists of tags had the entire list wrap to the next line instead of just the tags, separating the heading from the tags.
Content formatting for 400 and 403 pages

Added text-content class to content container to give list proper formatting.
Merge pull request #2596 from stephaniehobson/formatting-400-403

Content formatting for 400 and 403 pages
Merge pull request #2595 from stephaniehobson/wrap-tags

Fix nit with tag display