In Latex pdf export (C-c C-e l o) `$m$` renders correctly as italics *m* but in HTML export (C-c C-e h o) it renders as Roman `m`. 

Reverse slash Latex formulas like $\mathbb{N}$ render fine in both Latex and HTML.

How can I fix this so that $m$ renders as *m* in HTML too?

I use this header for both exports:

    #+SETUPFILE: ~/.emacs.d/org-templates/level-2.org
    #+HTML_HEAD: <link rel="stylesheet" type="text/css" href="http://cavendish-deneyi.com/css/worg-classic-new.css"/>


[![enter image description here][1]][1]

[![enter image description here][2]][2]


  [1]: https://i.sstatic.net/lIjn9.png
  [2]: https://i.sstatic.net/SCIs0.png