Difference between HTML & DHTML
1. It is referred as a static HTML and static in nature.
2.A plain page without any styles and Scripts called as HTML.
3.HTML sites will be slow upon client-side technologies.
1.It is referred as a dynamic HTML and dynamic in nature.
2.A page with HTML, CSS, DOM and Scripts called as DHTML.
3.DHTML sites will be fast enough upon client-side technologies.
XHTML is HTML (but also XML)