Thank you Prof. Wessell for the remark. Indeed, as Gunther Maria Michel explained (thank you, also), it is possible to enlarge the font easily up to a comfortable size by "Ctrl +", so that everyone can read the text in an individual manner. I hope you come back to me soon to report, how it works. Thanks again, Josef

Dear Prof Wessell
Please simultaneously press the control key ("Ctrl" or "Strg") and "+". This action will increase the font in most browsers. You can do that repeatedly.
To zoom out, press again the Control key with "-".
Hope I could help you with this advice.

JoBo, I thank you for your many wonderful contributions. I am aging with its accompanying weakenig of eye sight. The small print often makes it difficult to
read you article through. Could you write your contribution in larger printe of
install something that allows the reader to enlarge the size. Thank you for the
the consideration.