A blank SVG canvas with a large circle positioned by D3's `select` and `append` methods, while the page loads React and ReactDOM from a CDN though the circle is drawn without them. The example demonstrates a minimal static SVG rendering, using D3 to set the circle's radius to 200 pixels, with the SVG dimensions defined in the HTML. The styling hides the body margin and overflow, and the visualization shows only this single, unlabeled shape.