i posted this question in other forum but no luck so far,
i found a link that has the same goal as i am but dont know how modify this
http://www.verysimple.com/blog/wp-content/uploads/2007/01/resize_css.html
my goal would be in reverse when enlarge (window browser dragging) my div will decrease size (width) when enlarge my div will be shorter or narrower.
the div will resize by increments just dont know the exact but
like 1024 window width the div width would be 15px and the 1900 window width the div would be3px.
really need your help!