This example reproduces a Sol LeWitt wall drawing by generating two intersecting sets of striped rectangles within a circular mask on an SVG canvas. One set of horizontal bands is clipped by a white circle mask, while a second set of vertical bands is clipped by an inverted black circle mask, creating a checkerboard-like pattern inside the circle. The code uses raw JavaScript and the SVG DOM API, creating elements with `document.createElementNS` and applying masks via `url(#circle-mask)` and `url(#circle-mask-2)`. The rectangles are laid out programmatically in two loops of 100 iterations each.