<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<title></title>
<style>
*{
margin:0;
padding:0;
}
html,body{
100%;
height:100%;
position:relative;
overflow:hidden;
}
.box{
100%;
height:100%;
position:absolute;
top:0;
left:0;
}
.box .ul-star{
100%;
height:100%;
}
</style>
</head>
<body>
<div id="box" class="box" index ='0'>
<div class="ul-star" style="background:red"></div>
<div class="ul-star" style="background:green"></div>
<div class="ul-star" style="background:grey"></div>
<div class="ul-star" style="background:blue"></div>
</div>
</body>
<script src="js/jquery.js"></script>
<script>
$("#box").on("mousewheel",function(ev){
var hhs = ev.originalEvent.wheelDelta;
var fangx = hhs >0?1:0;//向下为负值
var index = $("#box").attr("index");
var maxpage = $("#box div").size()-1;
if(fangx){//1,top为负值往下
if(--index<0){
return
}
}
else{
if(++index > maxpage){
return
}
}
if(!$(this).is(":animated")){
$("#box").animate({top:"-"+index+"00%"},300)
$("#box").attr("index",index)
}
})
</script>
</html>