This example demonstrates a minimal HTML setup for embedding a Vega-Lite visualization in a web page. It loads the Vega, Vega-Lite, and Vega-Embed JavaScript libraries from a CDN and creates a single empty div element with the ID “vis”. The code does not include any chart specification or data, so it only provides the foundational structure and script tags required to render a chart later. The Vega-Embed library would populate the div with a visualization once a specification is supplied.