This example shows a static traffic light constructed entirely with inline SVG shapes, including a grey pole and red, yellow, and green circles. The code uses raw SVG elements like `rect` and `circle` directly within an HTML page, styled with a minimal CSS rule that removes the default body margin. It uses no JavaScript or external libraries, demonstrating how SVG alone can create simple visual representations. The accompanying text notes that dynamic color changes would require JavaScript, which this illustration omits.