jQuery 浮动菜单在 Chrome 中不起作用

Question

我正在为 jQuery 开发一个浮动菜单插件，它让我发疯，因为它在其他浏览器中运行良好，但在 Chrome 中它只是坐在那里，而不是在用户向上或向下滚动时滚动页面：

                // Cache :)
            var fblb_cont = $("#fblb_cont");
            var fblb_main = $("#fblb_cont .fblb_main"); 
            var fblb_pos = $('#fblb_cont').position().top;
            var float_easing = "easeOutQuint";

            // When the user scrolls
            $(window).scroll(function () { 


                // Float our bar to correct page location
                // Figure out how much to scroll
                var scroll_factor = $(document).scrollTop();

                // Create our new scrollTo position             
                var newPos = ( fblb_pos + scroll_factor );

                // Check if the window height is within bounds
                if( $(window).height() < $("#fblb_cont").height()+$("#fblb_cont .fblb_main").height() ){

                    // Adjust where needed
                    fblb_cont.css("top", fblb_pos);

                } else {

                    // Otherwise animate our scroll to the new position
                    $("#fblb_cont").stop().animate({top: newPos}, defaults.float_speed, float_easing);

                } // End if



            }); // End on scroll

Answer 1

试试这个：

$("#fblb_cont").stop().animate({top: newPos + 'px'},
                          defaults.float_speed, float_easing);