<!doctype html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport"
content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>盒子垂直水平居中</title>
<style>
div{
width: 200px;
height: 200px;
background-color: pink;
position: absolute;
top: 50%;
left: 50%;
/*margin-top: -100px;*/
/*margin-left:-100px;*/
transform: translate(-50%,-50%);
}
</style>
</head>
<body>
<div>
</div>
</body>
</html>
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