Easy Parallax

easy_parallax.js

(function($){

  function parallax() {
    var scrolled = $(window).scrollTop();

    $('.parallax')
      .css('top', 'calc(140px + ' + (scrolled * .6) + 'px)')
      .css('opacity', 1 - (scrolled * .003));
  };

  parallax();

  $(window).scroll(function(){
    parallax();
  });

})(jQuery);