This example shows a yellow smiley face drawn with a black outline and two black eyes on a blank page, with a red arc forming a mouth below. The visualization is created using raw SVG elements within an HTML file, while a React component renders the mouth path using d3’s `arc` generator. The code imports React and ReactDOM, uses an `arc()` from d3 to define the mouth’s geometry, and outputs the path into an SVG element. The page includes a hidden script reference to `bundle.js`, though only the inline SVG and React rendering are visible in the provided files.