StyleSpecs is an object which knows about the intrinsic styles of an element without having to declare these styles explicitely is the CSS stylesheet. For example,
com.xmlmind.xmleditext.xhtml.table.StyleSpecsImpl knows that an XHTML
th is rendered by default using a bold font and that its text must be centered withing the table cell.
StyleSpecs is not declared anywhere. It is registered with XXE style engine in the constructor of a stylesheet extension class using
StyleSpecs or derive class
StyleSpecsBase. See sample