This interactive SVG reproduction of a Sol LeWitt wall drawing generates intersecting horizontal and vertical striped bands across the entire browser window. Using the Document API to create and append SVG elements, the code defines two masks—one with white circles on black, another with black circles on white—to selectively reveal the grid strokes. The rendering approach applies these masks to alternating 10-pixel-wide rectangles, producing overlapping circular patterns where the two color schemes intersect. The composition adapts dynamically to the viewport dimensions, with circles positioned at quarter and two-thirds width.