<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
<style>
*{
margin: 0;
}
#div{
font-size: 50px;
text-align: center;
line-height: 40px;
}
#div1{
height: 2000px;
width: auto;
background-color: #fff2e7;
z-index: 10;
font-size: 30px;
color:midnightblue;
position: fixed;
}
#div2{
height: 3000px;
width: auto;
background-color: #7b7b7b;
opacity: 0.8;
position: fixed;
top: 0;
left: 0;
right: 0;
z-index: 500;
}
#div3{
position: absolute;
height: 300px;
width: 600px;
background-color: #4c59a2;
top: 25%;
left: 32%;
z-index: 501;
font-size: 20px;
text-align: center;
}
.class1{
display:none;
}
#inp{
position: absolute;
left: 50px;
top: 30px;
}
#inp1{
bottom: 15px;
right: 15px;
position: absolute;
}
</style>
</head>
<body>
<div >display:none;(当他存在时 此标签是物理级隐藏的 看不见也摸不到)
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