A single yellow circle with a black outline sits at the center of a 960-by-500 SVG canvas. The circle is drawn using raw SVG markup within an HTML page, with its position and size fixed via the `cx`, `cy`, and `r` attributes. The page uses no JavaScript or external libraries, relying solely on inline SVG and basic CSS to set the body margin and hide overflow. The rendering is static and defined entirely in the `index.html` file.