This example shows a single pet-selection dropdown menu built with React. Users choose from six animal options, and the selected value is managed through React’s `useState` hook. The `Dropdown` component renders a `<select>` element, mapping over an options array to create `<option>` tags and firing `onSelectedValueChange` on change. It uses React and ReactDOM from UMD builds, with styling applied via plain CSS for oversized text and hidden page margins.