pub(crate) trait StyleSheetMethods<D>where
    D: DomTypes,{
    // Required methods
    fn Type(&self) -> DOMString;
    fn GetHref(&self) -> Option<DOMString>;
    fn GetOwnerNode(&self) -> Option<Root<Dom<<D as DomTypes>::Element>>>;
    fn GetTitle(&self) -> Option<DOMString>;
    fn Media(&self) -> Root<Dom<<D as DomTypes>::MediaList>>;
    fn Disabled(&self) -> bool;
    fn SetDisabled(&self, value: bool);
}