Classes representing the style properties. (DEPRECATED: functionality will be moved to element.style for version 0.8 see Bug 72) Each style-family is associated with a set of properties, e.g. style:family="text" is associated with a style:text-properties child element. Some style families contain multiple style properties.The associations which properties go with which style families were generated from the RelaxNG schema. Then again these properties have various style property attributes.