code: private void doBegin(String element, String id, String cssClass) throws IOException {
  		writer.write('<');
  		writer.write(element);
  		attr("id", id);
  		attr("class", cssClass);
  	}
docs: Begin an element without closing (no ending &gt;).
  
  @param element tag name
  @param id element ID
  @param cssClass CSS class name