It is not about making the browser act like a book. It is about using HTML (a document markup language) and CSS (styling independent of semantics) to write page

It is not about making the browser act like a book. It is about using HTML (a document markup language) and CSS (styling independent of semantics) to write paged media. I personally need to write the same documents fairly often in both latex and HTML in order to make them pretty for paper and screen. I would love to use HTML/CSS for both.