magnifier for HTML document

I have a page and I want to create a magnifier for my web page (HTML document not just images), I want do this for some reasons and I just want to know How can I do it? and is this possible?

Nothing is impossible, the word itself says " I'm possible"! Audery Hepburn

I know it's possible for professional programmers, and I'm just asking from them, How to do it?

I need lens magnifier and for all document, something like Windows magnifier

I searched on the Internet but there are just magnifiers for Images, and I need magnifier for all HTML document, and I don't expect you do it for me, I know JavaScript programming and I just need your suggestions and helps to find a way.