SVG Fundamentals
This example demonstrates the minimal setup for VizHub v3, where a single exported `main` function renders a styled "Hello World" message into a provided container DIV. The code uses plain HTML and inline CSS to set a large font size, which can be interactively adjusted by Alt-dragging the number in the editor. It highlights the runtime’s continuous hot reloading and simplified entry point, replacing the traditional `index.html` file.