鼠标滑动判断与y轴的距离

 $(window).scroll(function(){
                        var y = window.scrollY;//754到达
                        if(y > 754){
                            $("#mynav").css({position:"fixed",top:0});
                        }else{
                            $("#mynav").css({position:"relative"});
                        }

                    }); 
posted @ 2015-11-09 18:28  顾小骚  阅读(316)  评论(0)    收藏  举报