class Element extends Node {

    public Set<String> classNames() {
    	String[] names = classSplit.split(className());
    	Set<String> classNames = new LinkedHashSet<>(Arrays.asList(names));
    	classNames.remove(""); // if classNames() was empty, would include an empty class

        return classNames;
    }

    public  Element(String tag);
    public  Element(Tag tag, String baseUri, Attributes attributes);
    public  Element(Tag tag, String baseUri);

}