If you create a box in the footer region, you will get a mysterious "Cancel" link that shows up for box administrators. This is due to the fact that boxes renders administrator controls and then hides them in CSS with {display:none}. Jackson has #footer ul li {display:inline}, which overrides the box CSS, causing the link to show up.

Obviously, you can re-override the display:inline with an even more specific selector. That's why this is minor. This is really here more for people who are wondering what the heck that cancel link is.