It works.

Highlight Test

#include <iostream>

signed main()
{
  std::cout << "hello, world" << '\n'
  return 0;
}

Mathjax

$$\begin{align} D(x) &= \int_{x_0}^x P(x^{\prime})\,\mathrm{dx^{\prime}} \\ &= C\int_{x_0}^x x^{\prime n}\,\mathrm{dx^{\prime}} \\ &= \frac{C}{n+1}(x^{n+1}-x_0^{n+1}) \\ &\equiv y \end{align}$$