This example demonstrates a minimal HTML page titled “Dataviz2020-Hello HTML,” serving as a blank canvas for future visualization work. It shows an empty body with no visual output, simply establishing the document structure required for web-based graphics. The code uses plain HTML tags—`<!DOCTYPE html>`, `<html>`, `<head>`, and `<body>`—with no external libraries or APIs. It also embeds a YouTube video via an `<iframe>`, indicating a supplementary tutorial or reference. The rendering approach is static, with no data source or interactive elements present.