This example demonstrates a basic D3 version 7 setup by rendering a collection of primitive SVG shapes—two circles and a stroked rectangle—on a 1000×1000 canvas. The code uses the `select` API from D3 to write the text “Hello D3 version 7” into the page body. The visualization is purely static, showing simple geometric forms with blue and red fills, and it serves as a minimal introduction to importing and using D3’s selection and manipulation methods in an HTML document.