Minus a few pixels from jQuery height()

Question

Ok, amateur question here but im really bumping my head.

Using the jQuery below, i would like to add margin-top:-100px; to the height value.

Please help! Thanks

Answer 1

Here code:

$(function () {

   function HomePageSize() {
       $('#home').css({
           width: $(window).width(),
           height: $(window).height()
       });
   }

   $(window).resize(function () {
       HomePageSize();
   });

  addMargin();

  function addMargin() {
       $('#home').css({'margin-top':'-100px'});
  }

});