我在滚动代码上添加类有问题...在滚动浏览元素后添加类,而不是在用户开始滚动时将类添加到每个元素。
http://sandbox.viaphase.com/ajs-presentation/
$(document).ready(function() {
$(window).scroll( function(){
/* Check the location of each desired element */
$('.animscroll').each( function(i){
var bottom_of_object = $(this).offset().top + $(this).outerHeight();
var bottom_of_window = $(window).scrollTop() + $(window).height();
/* If the object is completely visible in the window, fade it it */
if( bottom_of_window > bottom_of_object ){
$(this).addClass('SlideUp'); //Adds animation class to element
}
});
});
});