Closing Card #22.

RSpec status:	 		17 example, 0 failures, 1 pending
Teaspoon status:	 	253 tests: 0 failures, 0 errors, 78 pending, 0 omitted
Custom RuboCop rules:	None
Inline RuboCop disabling:	None (in non-generated code)

Trello cards authorising work:
* https://trello.com/c/vrLaUA5h/22-specified-selection-s-markup-and-text-content
* https://trello.com/c/h6Kw6FkX/14-main-app-landing-page (partial)