This example demonstrates a simple interactive menu built with React. It shows a dropdown select field where the user can choose a pet from a predefined list, and the selected value is logged to the console and stored in state. The code uses React’s `useState` hook to manage the selected value and renders a custom `Dropdown` component that wraps a native HTML `<select>` element. It relies on ReactDOM to mount the app into the DOM, with React and ReactDOM loaded from UMD production builds.