SVG Fundamentals
This example demonstrates the "Hello World" of the VizHub V3 runtime environment, showing how a simple SVG text element can be rendered with a dynamic font size. The code exports a `main` function that takes a container DIV and sets its inner HTML with an inline style, allowing the user to interactively adjust the font size by Alt-dragging the number in the editor. The example highlights the continuous hot reloading feature, where changes to the numeric value update the visualization in real time without a manual refresh. It uses plain HTML and JavaScript, with no external libraries.