<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title></title>
</head>
<body>
<style type="text/css">
.div-auto {
width: 100px;
background-color: #000;
margin-top: 100px;
margin-left: auto;
margin-right: auto;
}
body{
color:#FF6600;
}
</style>
<div class="div-auto">
Test
</div>
</body>
</html>
关键字词:
