Create a way to denote pages without a valid return method.

[Tor020]

ie: in the project guidelines it is outlined that there should be a way to navigate back to the main directory.

If a person's submission doesn't have a method to return to the directory a css style should be applied to the project on each page.

Create a class, that will somehow make it visually denotable when a page has no link back to the main directory.