菜鸟教程在线编辑器

AI 编程工具

 
                <!DOCTYPE html>
<html>
<head>
<meta charset="utf-8"> 
<title>菜鸟教程(runoob.com)</title> 
<style>
body
{
	background-image:url('gradient2.png');
}
</style>
</head>

<body>
<h1>Hello World!</h1>
</body>

</html>
              