def callFilterVisible(dropdownInput):
    """Handle visibility of filter input fields and description depending on
    whether a value is selected in the dropdown. Refers to the Second Order Section of the UI.

    Parameters
    ----------
    dropdownInput : :obj:`String`
        Either filter type as a string or "".

    Returns
    -------
    :obj:`Dictionary`
        Dictionary containing CSS style information for Dash.
        Changes 'display' style of filter inputs to either 'none' or 'inline-block'.

    """
    if dropdownInput != '':
        return {'display': 'inline-block'}, {'display': 'inline-block'}, {
            'display': 'inline-block'}
    return {'display': 'none'}, {'display': 'none'}, {'display': 'none'}
