Only show href of external links when printing.
Add no-print css class.
No longer remove outline of focused links.

Accessibility > Design.
Change the way the document's bottom margin is calculated.

Apparently, vertical percentages are relative to the *width* of the
containing block! [1] Who would have thought?
Now the bottom margin is calculated using javascript. [2]

[1]: http://www.impressivewebs.com/vertical-percentages-css/
[2]: http://ryanve.com/lab/dimensions/