自记滚动事件

var resultTop = $(".about-we-nav").offset().top;
$(window).scroll(function () {

if ($(document).scrollTop() >= resultTop-24) {
$(".about-we-nav").css({"top":"24px","position":"fixed"})
} else {
$(".about-we-nav").css({"position":"static"});
// alert(1)
}
});