<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>div居于页面正中间</title>
<style type="text/css">
*{
margin: 0;
padding: 0;
background-color: #EAEAEA;
}
div{
width: 200px;
height: 200px;
background-color: #1E90FF;
}
.center-in-center{
position: absolute;
top: 50%;
left: 50%;
-webkit-transform: translate(-50%, -50%);
-moz-transform: translate(-50%, -50%);
-ms-transform: translate(-50%, -50%);
-o-transform: translate(-50%, -50%);
transform: translate(-50%, -50%);
}
</style>
</head>
<body>
<div class="center-in-center"></div>
</body>
</html>