SVG Fundamentals
This example demonstrates fundamental SVG rendering techniques within a minimal HTML page. It sets up an empty SVG container and shows how to create and manipulate basic SVG elements like circles, rectangles, and paths. The visualization uses JavaScript to add and style SVG shapes dynamically, with CSS controlling appearance properties such as fill colors and stroke widths. The code provides a bare-bones foundation for understanding how SVG integrates with standard web technologies, preparing users for more complex data-driven visualizations with React and D3.