Removed some dead code.
Added a new optical illusion: cafe wall.
Added a new optical illusion: cafe wall.
Revert "Added a new optical illusion: cafe wall."

This reverts commit ad9f9f43e6cb558817975666c84772ea7e463836.
Removed some unneeded spans.
More table adjustments.
Changed the text of the reset link.
Got rid of some earlier silliness.
Added description to cafe wall and s/==/===/
Added link to front page and reduced offset.