[gwern]

One bit of irony: LaTeX.css can't display math without... JS.

(However, there is a solution if you're using Pandoc! Compile via texmath and then https://github.com/mathjax/MathJax-node can create a static HTML+CSS+fonts page, which aside from looking the same, runs far faster than loading Mathjax. This is what I do on gwern.net. It's very nice. texmath doesn't support all of LaTeX, of course, but if you need a block or a diagram, there's lots of Pandoc plugins to call a TeX install of some sort and generate an SVG or PNG.)