rule The rule object is used as a container for the combined selector and style attribute / value pairs which a style sheet is used to define. The selector (defined with NAME, ID, or CLASS attributes) may be accessed directly as a property. The value of the attribute / value pair must be found by the browser parsing the style sheet until it has found the specified match. Notice there are no methods, collections, or event handlers for this object. DOM Reference Internet Explorer document.all.styleSheetID.rules[n] The properties of the rule object are: readOnly selectorText style