On 9 Aug 2019, at 07:35, Atsuhito Kohda <atsu10.kohda@gmail.com> wrote:

Dear Taco, thanks for your reply.

> I opened the xhtml with firefox and the only problem I see
> is the ignored \displaystyle (which is why the integral looks small).
> Inline looks fine otherwise, no interchanging of limits.

Hmm, I use firefox 68.0.1 of Ubuntu 19.04 and firefox 60.8.0
of Debian/unstable.  I see the interchanging of limits with
both firefoxes.  BTW, it seems Chromium doesn't support MathML.
If any Linux users could test the xhtml with firefox (or any browsers)
I believe it would help us much.