This example displays basic SVG shapes—circles and rectangles—with different fill colors and a grouped set styled with white fill, black stroke, and a translation transform. A separate group contains line and path elements drawn with CSS class styling. The visualization uses raw SVG markup within an HTML document, while a React component renders a simple “Hello React!” message. CSS defines the line group’s stroke properties and hides page overflow. The code relies on standard SVG APIs and React’s `ReactDOM.render` for mounting.