I am working on VRcollab a virtual reality Web content builder using a Markup language that we created. Metaroom Markup applies html and css way of positioning and styling to 3d objects. You can see the project on github. https://github.com/MetaRoomMarkup/MetaRoomMarkup
https://news.ycombinator.com/item?id=10467290 https://news.ycombinator.com/item?id=10466754