Test code highlighting

js

const a = 1;
console.log(a);

css

body {
    background-color: #f0f0f0;
}

java

public class Test {
    public static void main(String[] args) {
        System.out.println("Hello, World!");
    }
}

python

print("Hello, World!")

react

import React from 'react';

function App() {
  return (
    <div>
      <h1>Hello, World!</h1>
    </div>
  );
}

export default App;