This example demonstrates the fundamental building blocks of SVG graphics embedded directly in an HTML page. It shows two circles rendered with SVG, one using the default black fill and the other explicitly set to red via the `fill` attribute, alongside a large text element styled through CSS. The visualization uses raw SVG elements within the HTML markup, with the `<circle>` and `<div>` tags, and applies styling through a `<style>` block. No JavaScript libraries are involved, relying solely on the native SVG API to illustrate basic vector rendering.