Someone may, think Latex is supporting Websites by design, and ask these question, it is our duty to educate them of the fact that is latex is not for the web. Not just close it as the web is using an external program. We are answering the question, not the question of a website. See: tex.stackexchange.com/questions/618769/latex-in-websites (He didn't add the mathjax tag) Note: it was closed as of mathjax. — VScode_fanboy 42 mins ago

addendum to above: I agree with that the question stated is not suitable for the site, as It is not LaTeX question It is adding a perfect working, no errors, finished (therefore no need to post here) LaTeX added to a website and he's asking what is it. But he's also not asking what is MathJax or how to use it. It is one of the grey areas that, yes, it is not suitable, but, not as the answer is MathJax (not a Mathjax code/instructions, just stating the name), it is not a MathJax question - that's why the Mathjax tag shouldn't be in the question in the first place. — VScode_fanboy 14 mins ago

addendum to above: related - Seems like this isn't off-topic until after you already know the answer. Voting to reopen. — VScode_fanboy 57 secs ago