I just found this description of how to clear floats without using
extra elements:

    http://www.quirksmode.org/css/clearing.html

If this idea works for forms then it would be nice to get rid of the
render_br kludge.  I haven't tried but it might still be tricky to
control rendering in IE.  Having working child and next sibling CSS
selectors would definitely make life easier.

  Neil