This example shows a full-screen SVG canvas generated entirely with vanilla JavaScript, without any external libraries. It creates 100 vertical rectangles, each 10 pixels wide, positioned at 20-pixel intervals across the viewport width. The code uses the Document Object Model (DOM) API methods `createElementNS`, `setAttribute`, and `appendChild` to build the SVG elements dynamically. The rectangles stretch to the full height of the window, producing a simple striped pattern that reacts to the browser’s current dimensions at load time.