The CSSPageRule interface represents a @page rule within a CSS style sheet. The @page rule is used to specify the dimensions, orientation, margins, etc. of a page box for paged media.

The parsable textual representation of the page selector for the rule.

SYNTAX_ERR: Raised if the specified CSS string value has a syntax error and is unparsable.

NO_MODIFICATION_ALLOWED_ERR: Raised if this rule is readonly.

The declaration-block of this rule.