This example presents a bare-bones HTML page that brings together CSS and JavaScript for rendering. The core functionality uses vanilla JavaScript with the D3.js library, specifically demonstrating a force-directed graph layout. The code employs `d3.forceSimulation` to calculate node positions and interactions, while CSS handles the visual styling. The example focuses on the fundamental integration of these technologies, providing a minimal yet functional starting point for more complex visualizations, with the underlying data structure defined within the script itself.