Serialize list of elements into HTML string.

    :Args:
      - document (:class:`ooxml.doc.Document`): Document object
      - elements (list): List of elements
      - options (dict): Optional dictionary with :class:`Context` options

    :Returns:
      Returns HTML representation of the document.

def serialize_elements(document, elements, options=None):
    """Serialize list of elements into HTML string.

    :Args:
      - document (:class:`ooxml.doc.Document`): Document object
      - elements (list): List of elements
      - options (dict): Optional dictionary with :class:`Context` options

    :Returns:
      Returns HTML representation of the document.
    """    
    ctx = Context(document, options)

    tree_root = root = etree.Element('div')

    for elem in elements:
        _ser = ctx.get_serializer(elem)

        if _ser:
            root = _ser(ctx, document, elem, root)

    # TODO:
    # - create footnotes now

    return etree.tostring(tree_root, pretty_print=ctx.options.get('pretty_print', True), encoding="utf-8", xml_declaration=False)