Note, too, that support for some of the things attempted here are still lacking in modern browsers.
Try it - See how it looks!
Check out this link in the print preview, too (at least if you are using a Gecko-based browser).
Also notice how the menu is not included in the print output.
Also, note how it doesn't matter what was visible on the screen when the print view is rendered.
Check out this link in the preint preview, as well.