Maybe that can help: HTML in 3D Space Part 2 - BJS Way to Matrix Transform
You can give any url instead of the video url, but you may get some security problems depending on the web server settings. Here’s one that works: Babylon.js Playground
Also this one with interactivity: https://playground.babylonjs.com/#TGZ9GN#26. It’s taken from this thread Youtube videos on a mesh (port of CSS3DRenderer.js). Click one time on the picture to give it focus and then you can interact with the web page.