This is a generative art example that reproduces a Sol LeWitt piece as an SVG drawing. It shows a grid of horizontal and vertical bands intersecting within two circular masks at the center of the viewport. The rendering uses vanilla JavaScript with SVG’s `mask` and `circle` elements to alternate which bands are visible. The code creates 100 horizontal and 100 vertical rectangles, each 10 pixels thick, and uses two complementary masks to reveal either the horizontal or vertical set within a 200-pixel-radius circle, creating a crosshatched, layered effect.