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Tab切换.html
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Tab切换.html
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>Document</title>
<style>
ul,
li {
margin: 0;
padding: 0;
}
li {
list-style: none;
}
.clearfix::after {
content: '';
display: block;
clear: both;
}
.tab {
width: 600px;
margin: 20px auto;
border: 1px solid #ccc;
border-radius: 4px;
padding: 20px 10px;
}
.header-list {
border-bottom: 1px solid #ccc;
}
.header-list>li {
float: left;
color: brown;
padding: 10px 20px;
border-left: 1px solid #fff;
border-top: 1px solid #fff;
border-right: 1px solid #fff;
cursor: pointer;
}
.header-list>.active {
border: 1px solid #ccc;
color: black;
border-bottom: 1px solid white;
margin-bottom: -1px;
border-radius: 4px 4px 0 0;
}
.content-list {
padding: 20px 10px;
}
.content-list li {
display: none;
}
.content-list>.active {
display: block;
}
</style>
</head>
<body>
<div class="tab">
<ul class="header-list clearfix">
<li class="active">选项1</li>
<li>选项2</li>
<li>选项3</li>
</ul>
<ul class="content-list">
<li class="active">内容1</li>
<li>内容2</li>
<li>内容3</li>
</ul>
</div>
<script>
var tabHeader = document.querySelector('.header-list');
var tabLis = document.querySelectorAll('.header-list>li');
var tabPanels = document.querySelectorAll('.content-list>li');
tabHeader.addEventListener('click', function (e) {
var clickNode = e.target;
if (clickNode.tagName.toLowerCase() === 'li') {
for (var i = 0; i < tabLis.length; i++) {
tabLis[i].classList.remove('active');
}
clickNode.classList.add('active');
var index = [].indexOf.call(tabLis, clickNode);
console.log(index);
for (var i = 0; i < tabPanels.length; i++) {
tabPanels[i].classList.remove('active');
}
tabPanels[index].classList.add('active');
}
})
</script>
</body>
</html>