原生js实现京东商城楼梯效果
Posted
tags:
篇首语:本文由小常识网(cha138.com)小编为大家整理,主要介绍了原生js实现京东商城楼梯效果相关的知识,希望对你有一定的参考价值。
这个可能有些兼容问题和小bug,新手写的不完善 欢迎指出
<!DOCTYPE html> <html> <head> <title></title> <meta charset="utf-8" /> <style type="text/css"> *{ margin: 0px; padding: 0px; list-style: none; } #header{ width: 1000px; height: 650px; margin: 0 auto; position: relative; } .fl{ width: 1000px; height: 600px; margin: 0 auto; position: relative; } #footer{ width: 1000px; height: 600px; margin: 0 auto; position: relative; } #calc{ height: 360px; width: 30px; position: fixed; display: none; left: 20px; top: 100px; } #calc ul li{ width: 28px; height: 28px; border: dashed 1px lightgray; text-align: center; line-height: 30px; cursor: pointer; position: relative; } #calc ul li span{ display: none; width: 28px; height: 28px; position: absolute; z-index: 1; background-color: red; overflow: hidden; top: 0px; left: 0px; font-size: 12px; } </style> </head> <body> <div id="calc"> <ul id="ul"> <li>1<span>服饰</span></li> <li>2<span>美妆</span></li> <li>3<span>手机</span></li> <li>4<span>家电</span></li> <li>5<span>数码</span></li> <li>6<span>服务</span></li> <li>7<span>图书</span></li> <li>8<span>母婴</span></li> <li>9<span>家具</span></li> <li>10<span>运动</span></li> <li>11<span>食品</span></li> <li>top<span>顶部</span></li> </ul> </div> <div id="header"> <img src="header.png"> </div> <div class="fl"> <img src="服饰.png"> </div> <div class="fl"> <img src="美妆.png"> </div> <div class="fl"> <img src="手机.png"> </div> <div class="fl"> <img src="家电.png"> </div> <div class="fl"> <img src="数码.png"> </div> <div class="fl"> <img src="服务.png"> </div> <div class="fl"> <img src="图书.png"> </div> <div class="fl"> <img src="母婴.png"> </div> <div class="fl"> <img src="居家.png"> </div> <div class="fl"> <img src="运动.png"> </div> <div class="fl"> <img src="食品.png"> </div> <div id="footer"><img src="footer.png"></div> </body> </html> <script type="text/javascript"> var header=document.getElementById(‘header‘); var fl=document.getElementsByClassName(‘fl‘); var footer=document.getElementById("footer"); var ul=document.getElementById("ul"); var li=ul.getElementsByTagName(‘li‘); var span=ul.getElementsByTagName("span"); window.addEventListener("scroll",function(){ var scrollTop=document.documentElement.scrollTop||window.pageYOffset||document.body.scrollTop; console.log(scrollTop) if(scrollTop>=650){ ul.parentNode.style.display="block"; } if(scrollTop<650){ ul.parentNode.style.display="none"; } for(i in fl){ if(fl[i].offsetTop-scrollTop>-300){ that=span[i]; for(var j=0;j<span.length;j++){ if (span[j]!=that) { span[j].style.display="none" } } span[i].style.display="block"; return false } } },0) for(var i=0;i<li.length;i++){ (function(index){ li[index].addEventListener("mouseover",function(){ span[index].style.display="block"; },false) })(i) } for(var i=0;i<li.length;i++){ (function(index){ li[index].addEventListener("click",function(){ span[index].style.display="block"; document.body.scrollTop=index*600+650; },false) })(i) } for(var i=0;i<li.length;i++){ (function(index){ li[index].addEventListener("mouseout",function(){ span[index].style.display="none"; },false) })(i) } </script>
以上是关于原生js实现京东商城楼梯效果的主要内容,如果未能解决你的问题,请参考以下文章