extra-offset property, which
has a pair of numbers as value, moves around objects in the printout.
The first number controls left-right movement; a positive number will
move the object to the right. The second number controls up-down
movement; a positive number will move it higher. The units of these
offsets are staff-spaces. The extra-offset property is a
low-level feature: the formatting engine is completely oblivious to
these offsets.