A file under org-mode can be exported to HTML using this:
C-c C-e h o
or
(org-export-dispatch) h o
And you'll get that ugly looking times font...
Is there a simple way to set another font?
Also interested in what is the proper (complicated) way :)
You have different options, depending on how elaborate you want to get... Easiest:
#+HTML_HEAD_EXTRA: <style>*{font-family: serif !important}</style>
More advanced:
#+HTML_HEAD: <link rel="stylesheet" type="text/css" href="myStyleSheet.css"/>
You can also put it all into a setup file and include it in your org-file:
#+SETUPFILE: ~/.emacs.d/org-templates/level-0.org
In that file there could be stuff like this (in this case, Charset, your stylesheet, Mathjax for nice Latex-style formulars):
#+HTML_HEAD_EXTRA: <meta charset="utf-8">
#+HTML_HEAD: <link rel="stylesheet" type="text/css" href="static/myStyle.css" />
#+HTML_HEAD_EXTRA: <script async type="text/javascript" src="https://cdn.rawgit.com/mathjax/MathJax/2.7.1/MathJax.js?config=TeX-AMS-MML_HTMLorMML"></script>
