xxxxxxxxxx
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Example of CSS background-color</title>
<style>
body {
background-color: #f0e68c;
}
h1 {
background-color: #f08080;
}
p {
background-color: #90ee90;
}
</style>
</head>
<body>
<h1>这是一个标题</h1>
<p>这是一个段落.</p>
</body>
</html>