Starter SVG
This example displays a full-screen SVG filled with fifty vertical rectangles, each 10 pixels wide and spaced 20 pixels apart, rendered across the entire browser window. A small red circle is drawn at the center of the viewport. The code creates the SVG dynamically using the Document Object Model and the `document.createElementNS` API, setting width and height attributes to match the window’s inner dimensions. No data source is involved; the visualization is purely procedural, using hardcoded values to generate the repeating pattern.