SVG Fundamentals
A single blue circle is drawn inside a 960×500 SVG canvas, centered at coordinates (50, 50) with a radius of 50 pixels. The example demonstrates fundamental SVG shape creation using inline markup in an HTML document, with the circle’s fill color set to blue via the `fill` attribute. The page also includes a commented reference to loading D3 v7 from a CDN and an uncommented script tag for `bundle.js`, though the circle itself requires no JavaScript to render. The visualization serves as a minimal introduction to SVG’s coordinate system and basic element syntax.