This visualization reproduces a Sol LeWitt art piece by rendering a single vertical black rectangle against a blank canvas, echoing the minimalist geometric style of the original work. The code creates an SVG element sized to the full browser window and appends a rectangle positioned 100 pixels from the left, with a width of 10 pixels and a height matching the viewport. It uses the raw DOM APIs `createElementNS` and `appendChild` to build the SVG structure without any external libraries. The piece highlights the simplicity of SVG-based drawing, focusing on the interaction between the fixed shape and the responsive window dimensions.