This example demonstrates three basic SVG shapes—a red circle, a yellow rectangle with a navy border, and a diagonal line—positioned on a 960×500 canvas. The code uses raw SVG elements (`circle`, `rect`, `line`) directly in HTML, with attributes such as `cx`, `cy`, `r`, `stroke`, and `stroke-width` controlling geometry and styling. No JavaScript libraries are involved; the rendering is purely declarative SVG. The visualization serves as a minimal reference for how SVG coordinates, fill colors, and strokes work in a standalone document.