This example shows a single yellow circle centered on a 960 by 500 SVG canvas, with a thick black stroke and no accompanying data. The circle’s radius and position are computed from the canvas dimensions, and the stroke width is set to 30. Built with React and ReactDOM, the visualization defines the SVG markup directly in a JSX component and renders it into the page’s root element. The code uses React’s `ReactDOM.render` to display the SVG, with all geometry hard-coded in the component.