W3C CSS2 Cascading Style Sheets, level 2 - instructional media + ...

Sheet
Page box
A
D
Page content
B
C
A: margin−top
B: margin−right
C: margin−bottom
D: margin−left
The computed value of box margins at the top or bottom of the page area is ’0’.
The page context [p. 176] has no notion of fonts, so ’em’ and ’ex’ units are not
allowed. Percentage values on the margin properties are relative to the dimensions
of the page box [p. 176] ; for left and right margins, they refer to page box
width while for top and bottom margins, they refer to page box height. All other
units associated with the respective CSS2 properties are allowed.
Due to negative margin values (either on the page box or on elements) or
absolute positioning [p. 113] content may end up outside the page box, but this
content may be "cut" -- by the user agent, the printer, or ultimately, the paper
cutter.
13.2.2 Page size: the ’size’ property
’size’
Value: {1,2} | auto | portrait | landscape | inherit
Initial: auto
Applies to: the page context
Inherited: N/A
Percentages: N/A
Media: visual, paged
This property specifies the size and orientation of a page box.
The size of a page box may either be "absolute" (fixed size) or "relative" (scalable,
i.e., fitting available sheet sizes). Relative page boxes allow user agents to
scale a document and make optimal use of the target size.
Three values for the ’size’ property create a relative page box:
177