From https://community.rstudio.com/t/how-to-fix-the-title-banner-to-the-top-of-page/158650/2

> I am looking for a solution to fix the title banner to the top of the rendered html page, while the rest of the page remains scrollable.

Currently we have no option for that. This issue track the idea of adding one. Upvote if interested. 👍 
2023-02-17T09:26:41Z
cderv
enhancement
Future
open
[FR] Allow a configuration to make the navbar sticky in Quarto website
https://github.com/quarto-dev/quarto-cli/issues/4401