Hi friend,

Some points to be remember :

DHTML:
It is an extension of HTML.It includes of small animations anddynamic menus in Web pages.
DHTML code makes use of style sheets and JavaScript.

An object,word or sentence on a webpage that becomes highlighted, larger, a different color
runs through it by moving your mouse cursor over it is the
result of adding a DHTML effect. This is done in the
language coding and when the file of the webpage was saved
it was saved as the .dhtml format instead of .htm or .html.

DHTML sites are dynamic in nature. DHTML uses client side
scripting to change variables in the presentation which
affects the look and function of an otherwise static page.
DHTML characteristics are the functions while a page is
viewed, rather than generating a unique page with each page
load (a dynamic website).

HTML is static.
HTML sites is client-side technologies.
This means the pages of thesite do not require any special processing
from the serverside before they go to the browser.

Thanks