This example displays the text “Hello HTML!” in large, centered type using a basic HTML page styled with CSS. It is a minimal starter project, intended as a template for building more complex D3 visualizations within a React framework. The code uses standard HTML and CSS for layout and styling, with no JavaScript or D3 APIs such as `d3.forceSimulation` currently in use. The visualization itself is static, showing a simple message rather than a data-driven chart or interactive graphic.