SVG Fundamentals
This example demonstrates fundamental SVG shapes, including circles, rectangles, and a line, composed within a 960×500 viewport. It uses raw SVG markup in an HTML document, styling elements via presentation attributes such as `fill`, `stroke`, and `stroke-width`. The code explicitly shows circles with red and green fills, a yellow rectangle with a blue border, and a blue outline rectangle, though it does not rely on any JavaScript libraries or external data. Rendering is handled entirely by the browser’s native SVG support.