<!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>手风琴</title>
<style>
* {
margin: 0;
padding: 0;
}
ul li {
list-style: none;
text-align: center;
}
li {
width: 150px;
height: 30px;
line-height: 30px;
cursor: pointer;
border-bottom: 1px solid #fff;
}
li h3 {
border-bottom: 1px solid #fff;
}
.wrap {
width: 200px;
}
.wrap .subContent {
color: #fff;
background: #008b8b;
overflow: hidden;
transition: all 2s ease 2s;
}
.details li {
background: #333;
}
</style>
<script>
window.onload = function() {
function p(arg) {
console.log(arg);
}
let content = document.querySelector(‘.content‘),
subContent = content.querySelectorAll(‘.subContent‘),
details = content.querySelectorAll(‘.details‘);
function ss() {
for (let i = 0; i < subContent.length; i++) {
subContent[i].style.height = ‘30px‘;
(function(q) {
subContent[q].addEventListener(‘click‘, function(ev) {
var e = ev || window.event;
e.stopPropagation();
e.preventDefault();
ss();
detailsLi = details[i].querySelectorAll(‘li‘);
this.style.height = 30 * (detailsLi.length + 1) + (detailsLi.length) + ‘px‘;
}, false);
})(i)
}
}
ss();
}
</script>
</head>
<body>
<div class="wrap">
<ul class="content">
<li class="subContent">
<h3>我是标题</h3>
<ul class="details">
<li>我是内容</li>
<li>我是内容</li>
<li>我是内容</li>
<li>我是内容</li>
<li>我是内容</li>
<li>我是内容</li>
</ul>
</li>
<li class="subContent">
<h3>我是标题1</h3>
<ul class="details">
<li>我是内容1</li>
<li>我是内容</li>
<li>我是内容</li>
<li>我是内容</li>
</ul>
</li>
<li class="subContent">
<h3>我是标题2</h3>
<ul class="details">
<li>我是内容2</li>
<li>我是内容</li>
<li>我是内容</li>
<li>我是内容</li>
</ul>
</li>
</ul>
</div>
</body>
</html>