Create a element to show the content, only to aural displays.

        :param content: The text content of element.
        :type content: str
        :param data_property_value: The value of custom attribute used to
                                    identify the fix.
        :type data_property_value: str
        :return: The element to show the content.
        :rtype: hatemile.util.html.htmldomelement.HTMLDOMElement

def _create_aural_content_element(self, content, data_property_value):
        """
        Create a element to show the content, only to aural displays.

        :param content: The text content of element.
        :type content: str
        :param data_property_value: The value of custom attribute used to
                                    identify the fix.
        :type data_property_value: str
        :return: The element to show the content.
        :rtype: hatemile.util.html.htmldomelement.HTMLDOMElement
        """

        content_element = self._create_content_element(
            content,
            data_property_value
        )
        content_element.set_attribute('unselectable', 'on')
        content_element.set_attribute('class', 'screen-reader-only')
        return content_element