61,128
社区成员




<!DOCTYPE HTML>
<html>
<head>
<meta charset="gb2312" />
<title></title>
<style>
span {
width:100px; height:100px;
border:1px solid red;
position:absolute; left:0; top:0; right:0; bottom:0;
margin:0 auto;
}
</style>
</head>
<body>
<span>123</span>
</body>
</html>
<!DOCTYPE HTML>
<html>
<head>
<meta charset="gb2312" />
<title></title>
<style>
span {
width:100px; height:100px;
border:1px solid red;
position:absolute; left:0; top:0; bottom:0;
margin:0 auto;
}
</style>
</head>
<body>
<span>123</span>
</body>
</html>