CSS背景属性用于设置一个部分中的所有背景图像属性。
示例
您可以尝试运行以下代码实现背景属性：
现场演示
<html>
<head>
<style>
#demo {
background: lightblue url("https://www.tutorialspoint.com/css/images/css-mini-logo.jpg") no-repeat fixed top;
}
</style>
</head>
<body>
<div id="demo">
<h1>www.tutorialspoint.com</h1>
<p>Tutorials Point originated from the idea that there exists a
class of readers who respond better to online content and prefer
to learn new skills at their own pace from the comforts of their
drawing rooms. The journey commenced with a single tutorial on
HTML in 2006 and elated by the response it generated, we worked our
way to adding fresh tutorials to our repository which now proudly
flaunts a wealth of tutorials and allied articles on topics ranging
from programming languages to web designing to academics and much more..
</p>
</div>
</body>
</html> 
