This visualization reproduces a Sol LeWitt-style geometric composition using generative SVG elements. It renders 100 horizontal and 100 vertical rectangular strips across the full viewport, with two circular masks applied to selectively reveal or hide portions of the strip patterns. The first mask exposes a central 200-pixel-radius circle against a black backdrop, while the second inverts the effect on the perpendicular strips. Built with raw JavaScript and the SVG API, the code dynamically creates the `svg`, `mask`, `rect`, and `circle` nodes without external libraries.