This visualization reproduces a Sol LeWitt art piece using SVG elements and masking techniques. It displays two sets of thin rectangular strips—one horizontal, one vertical—intersecting across the full browser window, with the horizontal strips visible only within a central white circular mask and the vertical strips visible only outside a similarly positioned black mask. The code builds the scene with vanilla JavaScript, creating SVG nodes via `document.createElementNS`, setting attributes directly, and applying two overlapping `mask` definitions to achieve the geometric contrast.