Hello HTML
This example displays a simple smiling face rendered as a yellow circle with two black eyes, drawn using SVG within a React application. The `App` component defines the graphic using React’s JSX syntax and renders it to the page via `ReactDOM.render`. The code directly specifies the circle and layout properties—such as `cx`, `cy`, and `r`—to position the face and eyes, with no external data or interaction beyond the static SVG output.