tab切换案例
作者：互联网
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title></title>
<style type="text/css">
*{
padding: 0;
margin: 0;
}
.item,ul,li{
list-style: none;
}
a{
text-decoration: none;
font-size: 20px;
line-height: 50px;
color: black;
}
.item>li{
width: 100px;
height: 50px;
float: left;
text-align: center;
position: relative;
}
.item>li:hover{
background-color: #DCDCDC;
}
.item>li>ul{
position: absolute;
top: 50px;
left: 0px;
display: none;
}
.item>li>ul>li{
border: 1px solid orange;
padding: 0 28px;
}
.item>li>ul>li:hover{
background-color: orange;
}
</style>
</head>
<body>
<ul class="item">
<li>
<a href="#">微博</a>
<ul>
<li>
<a href="#">私信</a>
</li>
<li>
<a href="#">评论</a>
</li>
<li>
<a href="#">@我</a>
</li>
</ul>
</li>
<li>
<a href="#">微博</a>
<ul>
<li>
<a href="#">私信</a>
</li>
<li>
<a href="#">评论</a>
</li>
<li>
<a href="#">@我</a>
</li>
</ul>
</li>
<li>
<a href="#">微博</a>
<ul>
<li>
<a href="#">私信</a>
</li>
<li>
<a href="#">评论</a>
</li>
<li>
<a href="#">@我</a>
</li>
</ul>
</li>
<li>
<a href="#">微博</a>
<ul>
<li>
<a href="#">私信</a>
</li>
<li>
<a href="#">评论</a>
</li>
<li>
<a href="#">@我</a>
</li>
</ul>
</li>
</ul>
</body>
<script type="text/javascript">
var wb = document.querySelector('.item');
var item = wb.children;
console.log(wb);
console.log(item);
for(var i=0;i<item.length;i++){
item[i].onmousemove = function(){
this.children[1].style.display = 'block';
}
item[i].onmouseout = function(){
this.children[1].style.display = 'none';
}
}
</script>
</html>标签：私信,item,color,li,案例,微博,切换,tab,ul 来源： https://blog.csdn.net/weixin_62219063/article/details/123621084