SVG fundamental
This example demonstrates the fundamental building blocks of SVG visualization using a bare-bones HTML page. It showcases how CSS and JavaScript can be used to render and style SVG elements directly within a web document. The code defines a simple visual layout using plain SVG primitives, with styling applied through embedded CSS rules to control presentation. It uses the standard DOM APIs and CSS selectors available in modern browsers, with no external visualization libraries, providing a minimal starting point for working with SVG graphics. The example renders a simple text-based message as its primary visual output.