This example demonstrates the basic structure of an HTML page that integrates SVG graphics created with D3.js. It shows a red circle positioned on an SVG canvas alongside a simple line element, combined with plain HTML text. The code primarily uses the D3.js library version 3 to render the SVG shapes, with the circle and line defined using standard SVG tags within an HTML document. The visualization serves as a minimal illustration of mixing vector graphics with standard web content.