.. _lengths:

*******
Lengths
*******

A valid length may have any of the following forms (where # is a
floating-point number):

    | #
    | The number specifies a distance in pixels.

    | #c
    | The number specifies a distance in centimeters on the screen.

    | #i
    | The number specifies a distance in inches on the screen.

    | #m
    | The number specifies a distance in millimeters on the screen.

    | #p
    | The number specifies a distance in printer's points (1/72 inch) on the
      screen.

Whitespace is permitted between the number and distance-unit character.