This example shows a simple yellow circle with two smaller black circles, forming a basic smiley face rendered in SVG. It demonstrates the minimal structure of an HTML page that combines CSS for styling and JavaScript for interactivity, though no JavaScript logic is implemented here. The visualization uses raw SVG elements—specifically `<circle>` tags—within an inline `<svg>` viewport sized 960 by 500 pixels. The CSS sets the body margin to zero and hides overflow, while the SVG itself applies attributes like `fill`, `stroke`, and `stroke-width` directly to the shapes.