This example shows a static set of basic geometric shapes rendered in an SVG canvas, using HTML, CSS, and JavaScript without any external libraries. It displays two circles, one pink and one black, alongside a black rectangle with a pink stroke, all positioned manually via SVG coordinates. The styling is applied through a CSS class for typography and inline presentation attributes for the shapes. The code demonstrates the foundational structure of an HTML page with embedded SVG, which serves as a minimal starting point for building more complex D3.js visualizations in a React environment.