This example displays a responsive smiley face graphic centered within the browser viewport. The visualization shows a large yellow circle with a black outline, two smaller circles representing eyes, and a hidden mouth element that is defined but not rendered. Built with React and ReactDOM, the code calculates the radius, eye positions, and offsets dynamically based on the window’s dimensions. The SVG is rendered with standard attributes such as `r`, `cx`, `cy`, and `stroke-width`, using the `transform` property to center the group. The data is hardcoded within the JavaScript, with no external datasets or interaction logic present.