实现可以拖动的悬浮框
直接上代码,有注释
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>实现可以拖动的悬浮框</title>
<style>
body{
height: 100%;
width: 100%;
position: relative;
}
.btn{
width: 200px;
margin: 0 auto;
text-align: center;
}
.main{
position: absolute;
left: 50%;
transform: translate(-50%,0);
width: 300px;
height: 300px;
background-color: skyblue;
text-align: center;
line-height: 300px;
display: none;
z-index: 100;
}
.close-btn{
position: absolute;
right: -20px;
top: -20px;
width: 50px;
height: 50px;
line-height: 50px;
border-radius: 50%;
background-color: #ccc;
color: #ffffff;
}
.mask{
height: 100%;
width: 100%;
position: fixed;
top: 0;
left: 0;
background-color: rgba(0, 0, 0, .3);
display: none;
z-index: 99;
}
</style>
</head>
<body>
<div class="btn">点击出现悬浮框</div>
<div class="main">
<span>这就是出现的悬浮框</span>
<span class="close-btn">关闭</span>
</div>
<div class="mask"></div>
<script>
let btn=document.querySelector('.btn')
let main=document.querySelector('.main')
let closeBtn=document.querySelector('.close-btn')
let mask=document.querySelector('.mask')
btn.addEventListener('click',function(){
main.style.display='block'
mask.style.display='block'
})
closeBtn.addEventListener('click',function(){
main.style.display='none'
mask.style.display='none'
})
main.addEventListener('mousedown',function(event){
let x=event.pageX-main.offsetLeft
let y=event.pageY-main.offsetTop
document.addEventListener('mousemove',move)
function move(event){
main.style.left=event.pageX-x+'px'
main.style.top=event.pageY-y+'px'
}
document.addEventListener('mouseup',function(){
document.removeEventListener('mousemove',move)
})
})
</script>
</body>
</html>
做为一个锻炼自己的过程,有什么错误欢迎指正