<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title></title>
<style type="text/css">
* {
margin: 0;
padding: 0;
}
a {
text-decoration: none;
}
html,
body {
width: 100%;
height: 100%;
}
.box {
width: 100%;
top: 0;
left: 0;
bottom: 0;
right: 0;
height: 100%;
background: rgba(0, 0, 0, 0.4);
position: fixed;
display: none;
}
.box1 {
width: 60%;
height: 60%;
margin: 50 auto;
background: #fff;
position: absolute;
left: 300px;
top: 100px;
border-radius: 2px;
box-shadow: 0 1px 3px rgb(0 0 0 / 30%);
}
.list {
height: 50px;
background-color: #4491e1;
font-size: 18px;
line-height: 50px;
position: relative;
padding: 0 20px;
display: flex;
justify-content: space-between;
color: #fff;
}
#ipt {
color: #fff;
}
</style>
</head>
<body>
<input type="button" value="点击弹出窗口" id="btn" />
<div class="box">
<div class="box1">
<div class="list">
<div>标题</div>
<a href="javascript:;" id="ipt">x</a>
</div>
<div>放内容</div>
</div>
</div>
<script type="text/javascript">
//点击按钮弹出窗口
let btn = document.querySelector('#btn')
let box = document.querySelector('.box')
btn.onclick = function() {
// btn.style.display = 'none'
box.style.display = 'block'
}
//点击按钮关闭窗口
let ipt = document.querySelector('#ipt')
ipt.onclick = function() {
box.style.display = 'none'
btn.style.display = 'block'
}
//拖拽
let list = document.querySelector('.list')
let box1 = document.querySelector('.box1')
list.onmousedown = function(e) {
console.log(e);
console.log(box1.offsetLeft);
console.log(box1.offsetTop);
let offsetX = e.pageX - box1.offsetLeft
let offsetY = e.pageY - box1.offsetTop
document.onmousemove = function(d) {
let left = d.pageX - offsetX;
let top = d.pageY - offsetY;
box1.style.left = left + 'px'
box1.style.top = top + 'px'
}
//鼠标抬起，清除鼠标移动事件
document.onmouseup = function() {
document.onmousemove = null;
}
}
</script>
</body>
</html>