题目一
通过浮动布局实现以下图片

浮动布局练习题目

题目二
通过浮动布局实现以下图案
浮动布局练习题目

题目一代码

<!DOCTYPE html>
<html lang="en">
<head>
	<meta charset="UTF-8">
	<title>浮动作业</title>
	<style type="text/css">
		.box{
			width: 1000px;
			margin: 0 auto;
		}
		div div{

			font: 900 30px/100px 'STSong'; 
			color: #fff;
			text-align: center;
			width: 200px;
			height: 100px;
			background-color: green;
			float: left;
		}
		.b6 {
			width: 600px;
			background-color: yellow;
		}
		.b7{
			width: 400px;
			height: 200px;
			line-height: 200px;
			background-color: yellowgreen;
			float: right;
		}
		.b8{
			width: 300px;
			height: 150px;
			line-height: 150px;
			background-color: #ebebeb;
			float: left;
		}
		.b9{
			width: 300px;
			height: 150px;
			line-height: 150px;
			background-color: #000;
			float: left;
		}
		.b10{
			width: 400px;
			height: 150px;
			line-height: 150px;
			background-color: cyan;
			float: right;
		}
		.b11{
			width: 600px;
			height: 100px;
			line-height: 100px;
			background-color: red;
		}
		.b12{
			width: 1000px;
			background-color: blue;
		}
	</style>
</head>
<body>
	<div class="box">
		<div class="b1">1</div>
		<div class="b2">2</div>
		<div class="b3">3</div>
		<div class="b4">4</div>
		<div class="b5">5</div>
		<div class="b6">6</div>
		<div class="b7">7</div>
		<div class="b8">8</div>
		<div class="b9">9</div>
		<div class="b10">10</div>
		<div class="b11">11</div>
		<div class="b12">12</div>
	</div>



</body>
</html>

题目二代码

<!DOCTYPE html>
<html>
<head>
	<meta charset="UTF-8">
	<title>作业2</title>
	<style type="text/css">
		.box{
			width: 600px;
			margin: 0 auto;
		}

		.l, .m , .r{
			width: 200px;
			float: left;
		}
		.l div, .r div {
			background-color: red;
			height: 190px;
		}
		.m div {
			background-color: yellow;
			height: 290px;
		}
		div div div:not(:first-child){
			margin-top: 10px;
		}


	</style>
</head>
<body>
	<div class="box">
		<div class="l">
			<div></div>
			<div></div>
			<div></div>
		</div>
		<div class="m">
			<div></div>
			<div></div>
		</div>
		<div class="r">
			<div></div>
			<div></div>
			<div></div>
		</div>
	</div>

</body>
</html>

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