SVG Fundamentals
This example demonstrates fundamental SVG shapes drawn directly in an HTML page. It shows circles, a thick line, and a path with varying colors and stroke properties, all rendered as static vector graphics. The code uses raw SVG elements such as `<circle>`, `<line>`, and `<path>` inside an `<svg>` container, with CSS defining a hover effect on circles that changes their fill color. No JavaScript libraries are involved except the inherent DOM structure, and the rendering approach relies purely on SVG markup.