@MusoFreak200
Hey, MusoFreak200. Cool name.
Unfortunately, HTML alone is not capable of such features as it is simply a markup language. There are other possibilities, though, such as: a server-side programming language to protect the pages (PHP, ASP.NET); server protection, that is, using the server software (Apache, IIS, etc.) to protect the pages; or Javascript, which I do not recommend.
We have forums for all of the above and experts for all of the above, too.
Back over to you, MusoFreak200.
Mark.