HTML代码如下
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>背景图片拉伸铺满页面</title>
<link type="text/css" rel="stylesheet" href="img.css"/>
</head>
<body>
</body>
</html>
CSS代码如下
body{
background-image: url(../../img/002.jpg);
background-size: cover;
}