3月26日作业-网页布局 - 每日作业

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<!DOCTYPE html>
<html lang="en">
<head>
	<meta charset="UTF-8">
	<title>Document</title>
	<style type="text/css">
	*{ margin:0;padding: 0; }
		.header{ background: #ccc; width:100%;height: 70px; }
		header{ width: 1000px;height: 100%; margin: 0 auto; background: #888}
		.content{ width: 1000px; margin:0 auto;}

		.content:after { content: ""; display:; clear: both;}
		/*选择以'content_'字母开头的class类样式元素*/
		div[class ^= "content_"] {
			height: 650px;
			float: left;
		}
		.content_left{width: 200px; background: lightskyblue;}
		.content_center{width: 600px; background: lightyellow;}
		.content_right{width: 200px; background: lightgreen;}
		
		.footer{ background: #ccc; width:100%;height: 70px; float: left;}
		footer{ width: 1000px;height: 100%; margin: 0 auto; background: #888}

	</style>
</head>
<body>
<div class="box">
	<div class="header">
		<header></header>
	</div>
	<div class="content">
		<div class="content_left"></div>
		<div class="content_center"></div>
		<div class="content_right"></div>
	</div>
	<div class="footer">
		<footer></footer>
	</div>
</div>
</body>
</html>

运行实例 »

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实例

<!DOCTYPE html>
<html lang="en">
<head>
	<meta charset="UTF-8">
	<title>Document</title>
	<style type="text/css">
		.clear{ width: 100%;height: 10px; clear: both; overflow: height;}
		header{ width: 1200px;height: 150px; margin: 0 auto; border: 1px solid #888;}
		.focus{ width: 1200px;height: 400px; margin: 0 auto; border: 1px solid #888; }
		.content{ width: 1200px;height: 400px; margin: 0 auto;}
		.ad{text-align: center;border: 1px solid #888;}
		.ad img{ vertical-align: middle; }
		/*选择以'con_left_'字母开头的class类样式元素*/
		div[class ^= "content_"] {
			width: 392px;
			border: 1px solid #888;
			float: left;
		}
		.content_center{margin:0 9px;}
		.bt{ margin:0 10px; border-bottom: 1px solid #ccc; overflow: hidden; height: 40px; line-height: 40px;}
		.bt span{ display: inline;border-bottom: 3px solid red; padding-bottom: 10px}
		.bt a{ float:right; }
		
	</style>
</head>
<body>
<div class="box">
	<header>
		logo
	</header>
	<div class="clear"></div>
	<div class="focus">
		焦点图
	</div>
	<div class="clear"></div>
	<div class="ad"><img src="images/ad1.png"></div>
	<div class="clear"></div>
	<div class="content">
		<div class="content_left">
			<div class="con_left_1">
				<div class="bt"><span>新闻动态</span><a href="">更多》</a></div>
				<div style="clear: both;"></div>
				<ul>
					<li>123</li>
					<li>123</li>
					<li>123</li>
					<li>123</li>
					<li>123</li>
					<li>123</li>
					<li>123</li>
					<li>123</li>
					<li>123</li>
					<li>123</li>
					<li>123</li>
					<li>123</li>
					<li>123</li>
					<li>123</li>
					<li>123</li>
					<li>123</li>
					<li>123</li>
					<li>123</li>
					<li>123</li>
					<li>123</li>
					<li>123</li>
				</ul>
			</div>
		</div>
		<div class="content_center">
			
				<div class="bt"><span>新闻动态</span><a href="">更多》</a></div>
				<div style="clear: both;"></div>
				<ul>
					<li>123</li>
					<li>123</li>
					<li>123</li>
					<li>123</li>
					<li>123</li>
					<li>123</li>
					<li>123</li>
					<li>123</li>
					<li>123</li>
					<li>123</li>
					<li>123</li>
					<li>123</li>
					<li>123</li>
					<li>123</li>
					<li>123</li>
					<li>123</li>
					<li>123</li>
					<li>123</li>
					<li>123</li>
					<li>123</li>
					<li>123</li>
				</ul>
			
		</div>
		<div class="content_right">
			
				<div class="bt"><span>新闻动态</span><a href="">更多》</a></div>
				<div style="clear: both;"></div>
				<ul>
					<li>123</li>
					<li>123</li>
					<li>123</li>
					<li>123</li>
					<li>123</li>
					<li>123</li>
					<li>123</li>
					<li>123</li>
					<li>123</li>
					<li>123</li>
					<li>123</li>
					<li>123</li>
					<li>123</li>
					<li>123</li>
					<li>123</li>
					<li>123</li>
					<li>123</li>
					<li>123</li>
					<li>123</li>
					<li>123</li>
					<li>123</li>
				</ul>
			
		</div>
	</div>
</div>
</body>
</html>

运行实例 »

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运行效果图1

运行效果图2

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1 comments

iamdov 2018-03-27 18:16:46

学习了多种清楚浮动的方式，以及清除图片下的空白区域

1 floor

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