3-31 代码检查

来源：3-31 编程练习

慕移动4506339

2021-10-23 17:33:40

<!DOCTYPE html>
<html>
<head>
    <title></title>
	<style type="text/css">
		div{
			width: 200px;
			height:150px;
			background-color: #eee;
			margin-top: 5px;
		}
		section{
			width: 200px;
			height: 30px;
			margin-bottom: 5px;
			background-color: #ff0;
		}
		div:empty{
		    background-color:#f00;
		}
		section:empty{
		    background-color:#abcdef;
		}
		
	</style>
</head>
<body>
	<div>
		<section>one</section>
		<section>two</section>
	</div>
	<div></div>
	<div>
		<section>three</section>
		<section>four</section>
		<section>five</section>
		<section></section>
	</div>
</body>
</html>

老师，麻烦检查下代码是否有误

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