Availability
DOM Level 2 CSS
Synopsis
unsigned long insertRule(String rule,
unsigned long index)
throws DOMException;
Arguments
rule
The complete, parseable text representation of the rule to be added
to the style sheet. For style rules, this includes both the element
selector and the style information.
index
The position in the cssRules array at which the
rule is to be inserted or appended.
Returns
The value of the index argument.
Throws
This method throws a DOMException with one of the following
code values in the following circumstances:
HIERARCHY_REQUEST_ERR
CSS syntax does not allow the specified rule at the specified
location.
INDEX_SIZE_ERR
index is negative or greater then
cssRules.length.
NO_MODIFICATION_ALLOWED_ERR
The style sheet is read-only.SYNTAX_ERR
The specified rule text contains a syntax
error.
Description
This method inserts (or appends) a new CSS
rule at the specified
index of the cssRules
array of this style sheet.