WIP: Resolve "Wiki pages are now misaligned in middle section"

What does this MR do?

Screenshots

Screen_Recording_2019-10-23_at_17.23.52

Does this MR meet the acceptance criteria?

Conformity

• Changelog entry
• Documentation created/updated or follow-up review issue created
• Code review guidelines
• Merge request performance guidelines
• Style guides
• Database guides
• Separation of EE specific content

Availability and Testing

• Review and add/update tests for this feature/bug. Consider all test levels. See the Test Planning Process.
• Tested in all supported browsers

Closes #34791 (closed)