This example demonstrates a minimal HTML page that integrates D3.js within a React framework. It displays a static blue square chart area with a large centered message, showcasing basic CSS styling and JavaScript setup. The page includes a `#chart` div and loads a `script.js` file that imports the `select` function from D3, though no interactive or data-driven rendering is implemented. The code highlights the foundational structure for building more complex visualizations using D3 and React.