jquery实现企业定位式导航效果
本文实例为大家分享了jquery实现企业定位式导航的具体代码，供大家参考，具体内容如下
完整代码如下：
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<style type="text/css">
*{margin:0;padding:0;}
.nav{width:100%;position:absolute;top:150px;}
.nav ul{width:1200px;height:50px;margin:0 auto;background:#ccc;}
.nav ul li{width:150px;height:50px;line-height:50px;text-align:center;list-style:none;float:left;cursor:pointer;}
.nav ul li:hover{background:#666;}
.nav ul li a{color:#000;font-size:18px;text-decoration:none;}
.nav .active{background:#666;}
.cont{width:1200px;height:4500px;margin:0 auto;}
.cont ol{width:1200px;height:4500px;margin:0 auto;}
.cont ol li{width:1200px;height:500px;list-style:none;}
.cont ol li p{color:#000;font-size:48px;}
</style>
</head>
<body>
<div style="height:200px;width:100%;"></div>
<div class="nav">
<ul>
<li class="active">page1</li>
<li>page2</li>
<li>page3</li>
<li>page4</li>
<li>page5</li>
<li>page6</li>
<li>page7</li>
<li>page8</li>
</ul>
</div>
<div class="cont">
<ol>
<li style="background:#aaa"><p>page1</p></li>
<li style="background:#999"><p>page2</p></li>
<li style="background:#666"><p>page3</p></li>
<li style="background:#333"><p>page4</p></li>
<li style="background:#bbb"><p>page5</p></li>
<li style="background:#aaa"><p>page6</p></li>
<li style="background:#ccc"><p>page7</p></li>
<li style="background:#000"><p>page8</p></li>
</ol>
</div>
<script type="text/javascript" src="http://code.jquery.com/jquery-2.1.1.min.js"></script>
<script type="text/javascript">
$(".nav ul li").click(function(){
var index=$(this).index();
var i=150+index*501+'px'
$("html,body").animate({scrollTop:i},500)
})
$(window).scroll(function(){
if($(window).scrollTop()>150){
$(".nav").css({"position":"fixed","top":"0px"})
}
else{
$(".nav").css({"position":"absolute","top":"150px"})
}
for(var x=0;x<8;x++){
var i=150+x*500
if($(window).scrollTop()>i && $(window).scrollTop()<i+500){
$(".nav ul li").eq(x).addClass("active").siblings().removeClass("active")}
}
})
</script>
</body>
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