Components: A React application contains multiple components. Each component returns JSX.
Component composition: These components can be imported and used inside another component, such as App.jsx.
App.jsx: The App component combines all the required components and returns the overall JSX structure.
main.jsx: The main.jsx file imports the App component and renders it using React DOM.
index.html: The index.html file contains a root element where React mounts the application.
Browser UI: React creates and updates the DOM, and the browser displays the final UI.
