Any visual css editor that writes the dimensions of the divs in a .css file?

Hi,

Im interested in finding an app to create the layouts of my web in a visual way, you know creating the divs with the mouse dragging and droping the corners and the laterals of the divs.

I have found Kompozer, but the position, the margins, etc, of the divs that you dimension and place, go directly to the HTML code (inline styles).

Do you know any visual css editor that writes the dimensions, margins and position of the divs in a .css file?

Ciao