This example draws a simple face using D3 v5 and SVG, rendering a single large circle as the primary visual element. The code selects the SVG container and appends a circle element, setting its radius to 200 pixels via the `attr` method. The page loads D3 from a CDN and applies basic CSS to remove margins and hide overflow. The visualization demonstrates fundamental D3 selection and SVG shape creation with a minimal, abstract representation.