页面水平居中代码实现
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>居中</title>
<style>
body{
background: red;
}
#main{
width: 1000px;
height: 800px;
background:yellow;
margin:0 auto;
}
</style>
</head>
<body>
<p id="main">
</p>
</body>
</html>