MathJax.Hub.Config({
  config: ["MMLorHTML.js"],
  jax: ["input/TeX", "output/HTML-CSS", "output/NativeMML"],
  extensions: ["MathMenu.js", "MathZoom.js"],
  TeX: {
    extensions: ["mhchem.js"],
    mhchem: {legacy: false}
  }
});