This example demonstrates how to draw a simple face using D3.js version 5 within a React framework. The code selects an SVG element and dynamically sizes it to fit the browser viewport, then appends a rounded rectangle with a black border as the face’s outline. Using `d3.select` and SVG attributes like `width`, `height`, and `rx`, it constructs the visual frame. The rendering approach relies solely on SVG shapes, with no facial features beyond the outlined rectangle, leaving the face deliberately minimal and functional as a starting point for further customization.