pandoc used with --mathjax and --template doesn't render formulae

I'm trying to render with pandoc a Markdown file containing math formulae into HTML with a template.

With

pandoc stuff.md -f markdown -t latex -s -o stuff.tex

pandoc --template=template.html --mathjax stuff.tex -f latex -t html -s -o stuff.html

no error is returned but the Latex and the CSS are not interpreted (although it works fine without template).

I've also tried what's proposed here and there but the result is unchanged.

Ultimately I could enrich my template with what is output without template, but this is ugly.

stuff.md:

---
title:  'Bla'
author: me
abstract: |
  blablabla.
...

# Blablabla

blablabla

# Blablabla 2

$\mathbf{Definition}$\
Antisymmetry : $\forall x, y \in A, (xRy \land yRx) \implies x=y$,

# Conclusion
blablabla

template.html:

<!doctype html>
<html lang="en">

<head>
  <meta charset="utf-8">
  <base href="/">
  <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
  <link rel="stylesheet" href="template.css">
  <title>Bla website</title>
</head>

<body class="body">
  <div class="header-container">
    <div class="header">
      bla header
    </div>
  </div>

  <div class="heart-container">
    <div class="heart">
      $body$
    </div>
  </div>
</body>
</html>

template.css:

.body {
    background-color: #000000;
    color: #B2F613;
    font-family: Georgia, "Times New Roman", Times, serif;

  margin: 0;

    display: grid;
    grid-template-columns: auto;
    grid-template-rows: auto auto;
}

.header-container {
    grid-row: 1;
    grid-column: 1;
}

.header {
  display: grid;
    grid-template-columns: min-content auto;
    grid-template-rows: auto;

    align-items: end;
}

.heart {
  display: grid;
    grid-template-columns: auto;
    grid-template-rows: auto;

    margin: 1em;

    align-items: center;
}

.heart-container {
    grid-row: 2;
    grid-column: 1;
}

Solution

The only thing I want is md -> html, but there are Latex formulae.

Then no need to use -t latex. Just use:

pandoc -f md --mathjax --template=template.html stuff.md -o output.html`

But note that your template.html needs to load mathjax. To get a good starting point, use pandoc -D html > template.html (which creates the template.html file in your current directory). Note the following part in the HTML <head>, which will be replaced by the mathjax loading script:

$if(math)$
  $math$
$endif$