*create a tmp html file with some content used for the header or footer of the ebook*

        **Key Arguments:**
            - ``content`` -- the content to include in the HTML file.

def _tmp_html_file(
            self,
            content):
        """*create a tmp html file with some content used for the header or footer of the ebook*

        **Key Arguments:**
            - ``content`` -- the content to include in the HTML file.
        """
        self.log.debug('starting the ``_tmp_html_file`` method')

        content = """

<hr>
<div style="text-align: center">
%(content)s
</div>
<hr>

""" % locals()

        now = datetime.now()
        now = now.strftime("%Y%m%dt%H%M%S%f")
        pathToWriteFile = "/tmp/%(now)s.html" % locals()
        try:
            self.log.debug("attempting to open the file %s" %
                           (pathToWriteFile,))
            writeFile = codecs.open(
                pathToWriteFile, encoding='utf-8', mode='w')
        except IOError, e:
            message = 'could not open the file %s' % (pathToWriteFile,)
            self.log.critical(message)
            raise IOError(message)
        writeFile.write(content)
        writeFile.close()

        self.log.debug('completed the ``_tmp_html_file`` method')
        return pathToWriteFile