This interactive reproduction of Sol LeWitt’s wall drawing uses a grid of horizontal and vertical lines clipped by circular masks to create a dynamic, overlapping pattern. Rendered as an SVG, the piece generates 50 horizontal and 50 vertical rectangles, with the horizontal lines masked by a white circle on a black background and the vertical lines by the inverse mask. Written in raw JavaScript, it programmatically builds the SVG elements without external libraries, responding to the browser window’s dimensions for its layout. The result is a geometric, generative artwork that mimics LeWitt’s conceptual, rule-based style.