Hello HTML
This example displays a React application that renders a single SVG circle alongside a static HTML page title. The circle is defined directly in the `index.html` file with an `r` attribute but no fill or position properties, appearing on a 960 by 500 canvas. The React component, using the `react` and `react-dom` libraries, mounts to a `root` div element via `ReactDom.render`, while the SVG remains separate and unstyled. No data source or interaction is present beyond the static markup.