Re: CSS layout and line breaking

FWIW

From my earliest days using LaTeX I have always thought that
any line breaks in math should be placed deliberately by the
author.  It's a matter of good editorial policy.  [Of
course, Gresham's law tells us that bad taste drives out
good.  :-) ]

As a consequence, for <math> in mathml I use the css:

      math  {white-space: nowrap}

Beyond taste there is the matter that I want to think of
(even presentation) <math> content as grist for a computer
algebra system where line breaks have no roll as
mathematical content.

                              -- Bill