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

If I understand correctly this should do it:

$(function () {
function HomePageSize() {
    var winHeight = $(window).height(); // store height in variable
    var myMargin = winHeight - 100; // deduct 100 from height

    $('#home').css({
        width: $(window).width(),
        height: winHeight,
        marginTop: myMargin // assign calculated value to margin-top
    });
}
$(window).resize(function () {
    HomePageSize();
});
HomePageSize();
});