<!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>Document</title>
<style>
*{
margin: 0;padding: 0;
}
html,body{
width: 100%;
height: 100%;
}
.abc{
position: fixed;
top:50%;
right:10px;
transform: translate(0,-50%);
width:400px;
height: 30%;
border-radius: 3px;
background: #000;
}
</style>
</head>
<body>
<div class="abc"></div>
</body>
</html>
高度不确定时而且不使用盒子模型等的情况下让其居中
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转载自blog.csdn.net/qq_36264495/article/details/79202228
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