1
CSS爲背景位置負Y值不會改變
div {
width: 300px;
height: 500px;
background-image: url(http://i.imgur.com/6TbTDVs.jpg);
background-position: center top;
}
jQuery的
$(window).scroll(function() {
var scrolledY = $(window).scrollTop();
var move = (scrolledY*0.2);
$('div').css('background-position','center -'+move*-1+'px');
});
http://jsfiddle.net/rgbjoy/8GkSg/
...我想我需要一杯咖啡。非常感謝。 – Tom