XSL-FO Example: simple list - p. Validity Constraint: Standalone Document Declaration The standalone document declaration must have the value "no" if any external markup declarations contain declarations of: • attributes with default values, if elements to which these attributes apply appear in the document without specifications of values for these attributes, or • entities (other than amp, lt, gt, apos, quot), if references to those entities appear in the document, or • attributes with values subject to normalization, where the attribute appears in the document with a value which will • change as a result of normalization, or • element types with element content, if white space occurs directly within any instance of those types.