Full TeX is not a good fit for the web as it's designed to typeset paginated documents at a size known at write time. You would standardise on some subset of Ma

Full TeX is not a good fit for the web as it's designed to typeset paginated documents at a size known at write time. You would standardise on some subset of Math mode LaTeX like MathJax does. The challenge is then picking the subset of LaTeX. Then maybe someday someone would write a web-LaTeX preprocessor with macros and the like.