This example generates an SVG composition inspired by Sol LeWitt's geometric wall drawings, using two masks to create an intersecting grid of vertical and horizontal stripes. The code builds a hexagonal pattern with `document.createElementNS` for SVG elements, applying `mask-1` and `mask-2` to 50 vertical and 50 horizontal rectangles. The masks are constructed from repeated polygon coordinates, producing a checkerboard-like overlay of alternating shapes. No external libraries are used; the rendering relies entirely on vanilla JavaScript and SVG masks to achieve the Op Art effect.