This example reproduces a Sol LeWitt art piece using D3 v6. It renders two sets of translucent black-and-white striped rectangles overlaid with masks, creating a grid of alternating symbols. The code uses `d3.select`, `d3.range`, `d3.symbol`, `d3.symbols`, `d3.scaleBand`, and SVG masks. Each mask layers vertically and horizontally offset rectangles with D3 symbol paths, alternating white and black fills to generate overlapping geometric patterns. The page fills the browser window with 120 stripes per axis, using inlined SVG without external data.