如何让body背景图自适应浏览器窗口大小

html {
	height:100%;
}
body {
	padding:0;
	margin:0;
	background:url(images/Starry.jpg) no-repeat;
	background-size:100% 100%;
	position:absolute;
}

https://blog.csdn.net/annaluo/article/details/78280251