This example shows the difference between text inside JSX string literals and JavaScript expressions in a React component. The component renders two lines, one displaying the literal string `'hello'` and the other evaluating the expression `{'hello'}` to produce the same text, with distinct styling applied via CSS. It uses React and ReactDOM from the unpkg CDN, with ReactDOM.render mounting the App component into the root div, demonstrating a minimal setup for a React-based visualization or UI.