This example demonstrates the minimal setup required to render content in a web browser using plain HTML and CSS. The page displays the text “Hello HTML” centered horizontally with a large 13em font size, achieved through the `body` element’s `text-align` and `font-size` properties. No external libraries or APIs are used; the code relies solely on standard HTML markup and inline CSS styling within the `<style>` tag. It serves as a bare-bones starting point for web development, contrasting with more complex frameworks like React.