A web-based reproduction of Sol LeWitt's wall drawing, rendered as a full-screen SVG using programmatic JavaScript. The piece displays a grid of thin, alternating horizontal and vertical gray bars, with a circular mask that inverts the contrast in the center, creating a subtle optical effect. It uses the raw SVG DOM API (`createElementNS`) to build elements, applying two masks (`circle-mask` and `circle-mask2`) to control visibility. The design is generated entirely in code, with no external libraries, drawing 100 horizontal and 100 vertical rectangles.