This example shows a smiley face rendered using React and SVG, with the face dynamically centered and scaled to fit the browser window. The code uses React 16.9 and ReactDOM to create SVG circle elements for the face, eyes, and mouth, with coordinates calculated from the window’s dimensions. It draws a yellow face with a black stroke, two black eyes, and a partial mouth outline, all transformed as a group to the center of the viewport. The rendering approach relies on JSX syntax and inline SVG properties.