获取元素(这里定位元素A)距离顶部的高度,接着设定scroll滚动的事件,比如超过那个高度,把A的位置设定为fixed,小于该高度,修改回relative. 方法一: $(function() { var elm = $('.nav'); var startPos = $(elm).offset().top; $.event.add(window, "scroll", function() { var p = $(window).scrollTop(); $(elm).css('pos
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"><html><head><meta http-equiv="Content-Type" content="text/html; charset=gbk" /><title>随屏滚动 - Liehuo.net</title><style>htm
var thisheith; $(function () { var divid = '#14681-121320-197209'; $(divid).find("a").addClass("c-red").addClass("b"); $(divid).bind("click", function () { chan