This example reproduces a Sol LeWitt art piece using only vanilla JavaScript and the SVG API. It shows a grid of black vertical and horizontal rectangles intersecting within a central white area, created through layered masking. The code builds an SVG mask with a large white rectangle and a smaller black rectangle to hide portions of the vertical stripes, while a foreground mask with a white center reveals the horizontal stripes within the same central region. The rendering approach relies on programmatic SVG element creation and mask compositing.