This interactive SVG artwork reproduces a Sol LeWitt-style drawing, displaying two overlaid grids of horizontal and vertical black bars. The horizontal bars appear inside a centered circle, while the vertical bars appear outside it, creating a contrast between the two regions. Using inverse masking via the SVG `mask` element, the code defines two complementary circular masks to selectively reveal each grid. The presentation is generated entirely through JavaScript and the native SVG DOM API, with a black-and-white geometric aesthetic.