This example demonstrates a minimal feasibility study for embedding D3 v6 within a React framework, rendering the text “Hello HTML” directly onto the page. The code uses a simple CSS rule to enlarge the body font and JavaScript to select the body element with `d3.select` and set its text content. It relies on the D3 library loaded from a CDN, with the page structure defined in `index.html`. The visualization shows no data or interactive elements, serving only as a basic proof-of-concept for D3 v6 integration.