jQuery 实现楼梯滚动效果
作者：互联网
楼梯滚动效果
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>楼梯滚动效果</title>
<script src="js/jquery-1.11.3.min.js"></script>
<style type="text/css">
body,ul,li{
padding: 0;
margin: 0;
}
li{
list-style: none;
}
#floorNav{
display: none;
position: fixed;
top: 100px;
left: 50px;
width: 32px;
border: 1px solid #CECECE;
}
#floorNav li{
position: relative;
width: 32px;
height: 32px;
border-bottom: 1px solid #CECECE;
text-align: center;
line-height: 32px;
font-size: 12px;
}
#floorNav span{
display: none;
position: absolute;
top: 0;
left: 0;
width: 32px;
height: 32px;
background: red;
color: white;
}
#floorNav li:hover span,#floorNav li.hover span{
display: block;
}
#floorNav li:last-child{
background: red;
color: white;
border-bottom: none;
}
#header,#footer{
width: 1000px;
height: 1000px;
background: darkgoldenrod;
margin: 0 auto;
}
#content li{
width:1000px;
height: 600px;
margin: 0 auto;
font-size: 40px;
text-align: center;
line-height: 600px;
}
</style>
</head>
<body>
<div id="floorNav">
<ul>
<li>1F<span>服饰</span></li>
<li>2F<span>美妆</span></li>
<li>3F<span>手机</span></li>
<li>4F<span>家电</span></li>
<li>5F<span>数码</span></li>
<li>6F<span>运动</span></li>
<li>7F<span>居家</span></li>
<li>8F<span>母婴</span></li>
<li>9F<span>食品</span></li>
<li>10F<span>图书</span></li>
<li>11F<span>服务</span></li>
<li>TOP</li>
</ul>
</div>
<div id="header"></div>
<div id="content">
<ul>
<li style="background: #8B0000;">服饰</li>
<li style="background: #123;">美妆</li>
<li style="background: #667;">手机</li>
<li style="background: #558;">家电</li>
<li style="background: #900;">数码</li>
<li style="background: #456;">运动</li>
<li style="background: #789;">居家</li>
<li style="background: #234;">母婴</li>
<li style="background: #567;">食品</li>
<li style="background: #887;">图书</li>
<li style="background: #980;">服务</li>
</ul>
</div>
<div id="footer"></div>
<script type="text/javascript">
$(function(){
var flag = true;
$(window).scroll(function(){
if(flag){
var st = $(this).scrollTop();
if(st>300){
$('#floorNav').fadeIn();
}else{
$('#floorNav').fadeOut();
}
$('#content li').each(function(i){
if(st >= $(this).offset().top-$(this).outerHeight()/2){
$('#floorNav li').eq(i).addClass('hover').siblings().removeClass('hover')
}
})
}
});
$('#floorNav li:not(:last)').click(function(){
flag = false;
$(this).addClass('hover').siblings().removeClass('hover');
var index = $(this).index();
$('body,html').stop().animate({'scrollTop':$('#content li').eq(index).offset().top},800,function(){
flag = true;
});
})
$('#floorNav li:last').click(function(){
flag = false;
$('body,html').stop().animate({'scrollTop':0},800,function(){
flag = false;
});
$('#floorNav').hide();
})
})
</script>
</body>
</html>
标签：jQuery,function,hover,滚动,li,height,floorNav,楼梯,32px 来源： https://blog.csdn.net/weixin_46390620/article/details/104721258