React w/TypeScript

index.html

<div id="app"></div>

playground.json

{
  "scripts": [
    "react",
    "react-dom"
  ],
  "styles": []
}

script.ts

function App() {
    return (
        <div>
            Hello
        </div>
    )
}

ReactDOM.render(<App />, document.getElementById("app"));

style.css

body {
    background-color: rgb(69, 170, 204);
}