The website import has a new html section type for a game, a quiz, a calculator or anything else with its own markup, styles and script. The section goes into the page as written, and its script runs on the published website.
You can also paste a page of HTML in place of JSON, or an assistant's whole answer with the page in a code block. On Create website, a whole page becomes the website exactly as written, named from its <title>. In the editor, Import JSON puts the page in place of the open page's sections.
A document or page that names no address gets one made from the title, with a number added when that address is in use. Copy the prompt now asks the assistant to find out what the website is for, its colours and its sections before writing anything.