This generative art piece recreates a Sol LeWitt-inspired composition using raw SVG elements created via the DOM API. It shows a field of randomly placed horizontal and vertical rectangles, where two circular masks reveal distinct visual layers: one masking a set of horizontal bars, and another revealing a grid of random rectangles. The code uses `document.createElementNS` to build SVG masks, circles, and rectangles, with random dimensions and positions for the geometric forms.