React Starter demonstrates a minimal React application that renders a static greeting. It displays the text "Hello React!" centered on the page, using a large font size styled via CSS. The example uses React 16.13.1 with ReactDOM to mount the root component into a `div` with the id `root`. The `index.html` file loads React and ReactDOM from unpkg CDN and includes a `bundle.js` script. The `index.js` defines a functional `App` component that returns the styled div and calls `ReactDOM.render`. No data or interactive features are present.