This example illustrates core SVG concepts through a minimal HTML page that uses CSS and JavaScript to render and manipulate vector graphics. The code demonstrates how to create and style SVG elements directly in the browser, leveraging standard DOM APIs and styling techniques. It serves as a foundational starter for understanding the structure of SVG documents, including shapes, attributes, and coordinate systems, without relying on external libraries. The implementation focuses on the bare-bones integration of SVG with web technologies, providing a clear baseline for more complex visualizations.