how can i make my XHTML documents work correctly on current browsers?

[fianajio]

As you know ,XHTML offers a lot of advantages over HTML. It's stricter, cleaner, more robust, and extensible. However, some modern browsers such as Internet Explorer don't understand XHTML; they only understand HTML 4. So how can i make my XHTML documents work correctly on current browsers?Any recommendation?

Thanks for any help!