SVG Fundamentals
This example demonstrates the SVG fundamental shapes: a circle, a red-filled circle, and a line, all drawn directly within an `index.html` file. It shows how SVG’s XML-based syntax renders these primitives with attributes like `cx`, `cy`, `r`, `fill`, and `stroke`. The code uses no external libraries, relying on the browser’s native SVG support to display the graphics, with the line depicted in navy color.