Question

I have body with height 100%. And two child divs. Is is possible to make:

1. First div height equals to content height
2. Second div height equals to all other free space

Answer 1

You can do that with jQuery, once the dom is ready

$(document).ready(function(){
    $('#second').css({
        'height': ($('body').height() - $('#first').height()) + 'px'
    });
});