This example demonstrates foundational techniques for creating vector graphics using native SVG elements embedded in HTML. The page displays a grid of alternating blue and red rectangles, overlaid with white, blue, and red circles, and a large red stroked circle, all constructed with explicit SVG tags. The code uses CSS to define a transition effect on rectangle elements, which animates their properties, and a hover rule that is invalidly written with an equals sign instead of a colon. The rendering is fully client-side through the SVG specification, with no external JavaScript libraries involved.