This example shows a static SVG smiley face composed of a large yellow circle and two smaller black eye circles, rendered on an HTML page. The page also includes a React component that renders the text “Hello JSX” into a root div, though the SVG remains the primary visual. The code uses React and ReactDOM from unpkg CDN links, alongside plain HTML and CSS. The SVG elements are drawn with explicit coordinates and styling properties such as fill, stroke, and stroke-width.