This example recreates a Sol LeWitt-style drawing using D3, showing a grid of horizontal and vertical lines overlaid with circular masks to create a distinctive visual rhythm. The code uses D3 selections and the `join` method to append SVG `rect` elements, generating 100 lines in each direction across the full viewport. Two SVG masks—one with a white circle on black, the other inverted—alternately reveal and hide portions of the grid, producing the final artwork. The rendering relies on SVG output within a minimal HTML page.