This example reproduces a Sol LeWitt-inspired geometric artwork using D3.js. It renders a grid of thin, alternating horizontal and vertical lines by combining SVG `rect` elements with two custom masks, creating an intersecting pattern that visually shifts between the two orientations. The JavaScript code uses D3 APIs such as `select`, `range`, `symbol`, `scaleBand`, and the `join` method to generate the 120-line structure. Each mask cycles through symbols from D3’s symbol set to alternate black and white fill, producing the final composed effect. The SVG output is sized to the full browser window.