Push footer to bottom when page is not full

Question

I\'m developing a mobile web app. This is the main structure from top to bottom: header div, menu div, content div, footer div. The header, menu and footer are constant and page

Answer 1

The following solution works for me, based on the answer from Александр Михайлов. It finds the bottom of the footer and determines if it is less than the document height and uses top margin on the footer to make up the shortfall. This solution might give issues if your content is being resized on the go.

$(function () {
    updateFooterPosition();
});

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

function updateFooterPosition() {
    var bottomOfFooter = $('footer').offset().top + $('footer').outerHeight(true);
    var heightShortage = $(document).height() - bottomOfFooter;
    if (heightShortage < 0) heightShortage = 0;
    $('footer').css('margin-top', heightShortage);
}