This piece reproduces a Sol LeWitt wall drawing using layered, masked geometric shapes. It shows a grid of horizontal and vertical lines that create a visual effect of concentric rings by using two SVG masks to reveal or hide portions of the line arrays. The artwork uses raw SVG elements and the JavaScript DOM API to construct a full-screen canvas, generating 100 horizontal and 100 vertical stripes, with the masks defined as a white triangle and a central black circle to modulate visibility.