This example presents a minimal SVG visualization: a single circle with a radius of 200 pixels rendered on a 960×500 canvas. The page uses raw HTML and inline SVG markup, with the circle positioned at the origin of the SVG coordinate system. The embedded YouTube video in the README suggests an instructional context. The index.html file sets the body margin to zero and hides overflow, ensuring the SVG fills the viewport cleanly. No external libraries are used; the rendering relies entirely on native SVG elements and attributes.