SVG Fundamentals
This example demonstrates the foundational building blocks of SVG graphics, showing a single red circle centered within an empty viewport. The code uses a minimal HTML page with inline SVG markup, specifying the circle’s position and radius through the `cx`, `cy`, and `r` attributes. Rendered directly in the browser via SVG, it highlights how geometric shapes are defined declaratively without any JavaScript, CSS, or external libraries. This serves as a bare-bones starting point for understanding vector rendering.