is there a way i can hide the style sheet i use from the user?
like they cant access it or view it?

of course there is

just in the same way you can hide source code (Other Post)

Don't put it on the internet !!

Chris is right. There's no way to completely hide your style sheet or your html for that matter unless you keep it off the internet. You can probably find ways to keep it hidden from less experienced visitors to your site. Then again those visitors aren't the ones most likely to be viewing your source code.

Why would you want to hide your html and css in the first place? Viewing source code is one of the best ways people have learned to code better websites and probably will continue to be for a long time to come.

im starting a portfolio site to design websites and i want to show what ive made
other porfolios just show images of what they made and i want to show them the real thing but i want them to buy it from me, not steal it :P

You can encrypt your html before uploading it if you want. I've never used html encryption or know much about it, but a simple search on 'html encryption' provided plenty of results.

Yeah u can still view it tho -especially if u are using golive cs.