This piece reproduces a Sol LeWitt wall drawing using D3.js to create a grid of horizontal and vertical lines. A circular mask reveals the intersection of the two line sets, with a white circle in the first mask and an inverted circle in the second, producing a clear central focus. The SVG rendering is generated procedurally using `d3.select`, `d3.range`, and the `join` API to append 100 rectangles in each direction, sized relative to the window dimensions. The artwork dynamically adapts to the viewport, with the mask radius fixed at 200 pixels.