SVG Fundamentals
This example demonstrates the VizHub V3 Runtime Environment, a minimal setup where a single `main` function exports the entry point and renders directly into a container DIV. It showcases continuous hot reloading and interactive widgets, allowing a numeric value to be adjusted live with Alt-drag. The code uses plain HTML and inline CSS to set a font size, with no external libraries or data sources. It serves as a blank slate for exploring the runtime’s simplified workflow.