text: $(document).ready(function() {
  	var height= $(window).height();
  	ajustesIniciales();
  	function ajustesIniciales(){
  		$('section#body').css({
  			"margin-top": height - 80 + "px"
  		});
  		$('div#container').css({
  			"margin-top": height - 80 + "px"
  		});
  	}
  	$(document).scroll(function() {
  		var scrollTop= $(this).scrollTop();
  		var pixels= scrollTop / 95;
  
  		if(scrollTop < height){
  			$("section#contenedor_general").css({
  				"background-position": "center -" + pixels *10 + "px"
  			});
  		}
  	});
  });