This example demonstrates a simple pet-selection menu built with React, showing how a dropdown component manages and displays a chosen value. The app uses the `useState` hook to track the selected pet, initializing it to `hamster`, and renders a `Dropdown` component that maps over a static array of pet options. The dropdown fires `onSelectedValueChange` on user interaction, updating the state and logging each selection to the console. The code relies on React 17 and ReactDOM to render the interface, with a plain HTML `<select>` element styled via CSS.