This example demonstrates a minimal interactive mouse-follower where a single circle remains stationary at the center of an SVG canvas. The visualization uses React to render an `<svg>` element with a fixed radius circle, while CSS hides any page overflow. The code leverages React’s component model and JSX syntax, with dimensions hardcoded as constants. Although a script tag references an external library, no mouse-tracking behavior is implemented in the visible code, making it a static starter template for further development.