Introduce HTML{Audio,Video}Element::new.
Introduce HTMLTable{Data,Header}CellElement::new.
Introduce HTMLHeadingElement::new.
Introduce HTMLIFrameElement::new.
Introduce HTMLImageElement::new.
Introduce HTMLUListElement::new.
Introduce HTMLTrackElement::new.
Introduce HTMLTableRowElement::new.
Introduce HTMLTitleElement::new.
Introduce HTMLTimeElement::new.
Introduce HTMLTextAreaElement::new.
Introduce HTMLTemplateElement::new.
Introduce HTMLTableSectionElement::new.
Make Document a Node.
Introduce HTMLTableColElement::new.
Introduce HTMLTableCaptionElement::new.
Introduce HTMLTableElement::new.
Introduce HTMLStyleElement::new.
Introduce HTMLSpanElement::new.
Introduce HTMLSourceElement::new.