This example shows a minimal React application that renders the Polish word “siemka” as large centered text. The code uses React 18’s `createRoot` API to mount an `App` component onto the `#root` element defined in `index.html`. The component returns a single `<div>` with a CSS class that sets its font size to 13em and centers the text horizontally. No interactive behavior or data visualization is present, making it a pure starter template for React projects.