This example reproduces a Sol LeWitt art piece using two sets of horizontal and vertical SVG rectangles layered with circular masks. The first mask confines a series of 100 horizontal strips to a central circle, while a second inverted mask exposes vertical strips only outside that same circle. The code builds the SVG dynamically with `document.createElementNS`, setting each rectangle’s dimensions and applying the masks via URL references. The result is a geometric composition of alternating line directions, with no external data source—pure algorithmic drawing in the browser.