在线运行代码 - 菜鸟教程

<!DOCTYPE html>
<html>
<head> 
<meta charset="utf-8"> 
<title>菜鸟教程(cainiaoplay.com)</title>
</head>
<body bgcolor="yellow">
	<h2>This is a heading</h2>
	<p>This is a paragraph.</p>
	<p>The old bgcolor attribute only works on the body element.</p>
	<p>For future proof HTML, use styles instead:</p>
</body>

</html>

源代码

动行结果