A yellow circle with a black outline and two black circles for eyes forms a simple smiley face. The SVG uses basic shape elements, with `<circle>` tags for the face and eyes, and CSS styling to set the canvas size and remove page margins. The face is centered on a 960 by 500 pixel canvas, with the main circle having a radius of 245 pixels and the eyes positioned symmetrically. The code directly embeds the SVG markup within an HTML file, using inline attributes for positioning, colors, and stroke widths.