ontainer` instance.

    :param width: :class:`.Dimension` or callable which returns a :class:`.Dimension`.
    :param height: :class:`.Dimension` or callable which returns a :class:`.Dimension`.

    :param left: Distance to the left edge of the :class:`.FloatContainer`.
    :param right: Distance to the right edge of the :class:`.FloatContainer`.
    :param top: Distance to the top of the :class:`.FloatContainer`.
    :param bottom: Distance to the bottom of the :class:`.FloatContainer`.

    :param attach_to_window: Attach to the cursor from this window, instead of
        the current window.
    :param hide_when_covering_content: Hide the float when it covers content underneath.
    :param allow_cover_cursor: When `False`, make sure to display the float
        below the cursor. Not on top of the indicated position.
    :param z_index: Z-index position. For a Float, this needs to be at least
        one. It is relative to the z_index of the parent container.
    :param transparent: :class:`.Filter` indicating whether this float needs to be
        drawn transparently.
    NFr"