看到别人发3-4练习的代码让老师评评，我也想看看我的代码是否处理的好不好，对知识的理解够不够透彻

<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title></title>
		<style>
			*{margin: 0px;padding: 0px;}
			.content{border: 1px grey dashed;width: 786px;overflow: hidden;margin: 0 auto;padding: 10px;}
			.last{width: 786px;}
			.box{border: 1px gray solid;width: 240px;float: left;margin: 10px;font-size: 20px;}
		</style>
	</head>
	<body>
		<div class="content">
			<div class="last">
				<div class="box">
					<img src="http://img1.sycdn.imooc.com/climg//590fe9770001e63102400135.jpg" alt="">
					<p>欢迎来到慕课网学知识</p>
				</div>
				<div class="box">
					<img src="http://img1.sycdn.imooc.com/climg//590fe97d00011bda02400135.jpg" alt="">
					<p>欢迎来到慕课网学知识</p>
				</div>
				<div class="box">
					<img src="http://img1.sycdn.imooc.com/climg//590fe982000150ba02400135.jpg" alt="">
					<p>欢迎来到慕课网学知识</p>
				</div>
			</div>
			<div class="last">
				<div class="box">
					<img src="http://img1.sycdn.imooc.com/climg//590fe9770001e63102400135.jpg" alt="">
					<p>欢迎来到慕课网学知识</p>
				</div>
				<div class="box">
					<img src="http://img1.sycdn.imooc.com/climg//590fe97d00011bda02400135.jpg" alt="">
					<p>欢迎来到慕课网学知识</p>
				</div>
				<div class="box">
					<img src="http://img1.sycdn.imooc.com/climg//590fe982000150ba02400135.jpg" alt="">
					<p>欢迎来到慕课网学知识</p>
				</div>
			</div>
			
		</div>
	</body>
</html>

看海的街道 2019-11-23

源自：float浮动 3-4 编程练习