// https://www.w3.org/TR/cssom-1/#the-medialist-interface
[Exposed=Window]
interface MediaList {
    [LegacyNullToEmptyString] stringifier attribute CSSOMString mediaText;
    readonly attribute unsigned long length;
    getter CSSOMString? item(unsigned long index);
    undefined appendMedium(CSSOMString medium);
    undefined deleteMedium(CSSOMString medium);
};