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8月16日作业
狼图腾的博客
Original
647 people have browsed it
实例 1、 
<!DOCTYPE html>
<html>
<head>
	<meta charset="UTF-8">
	<title>元素对齐</title>
</head>
<body>
<h3>元素对齐方式</h3>
 1.子元素是行内元素：如a,span <br>
<style>
	.box1 {
		width: 200px;
		height:200px;
		background-color: green;
		text-align: center;
	}
	.box1 a{
		  line-height: 200px;
	}
</style>
<div  class="box1">
	<a hret="">php中文网</a>
</div>
 2.子元素是多行的内联本文
<style>
	.box2 {
		width: 200px;
		height:200px;
		background-color: red;
		text-align: center;
		display: table-cell;
		 vertical-align: middle;
	}
</style>
<div class="	text-align: center;   box2">
	<span>php中文网</span>  <br>
	<span>www.php.cn</span>
</div>
3.子元素是块元素
<style>
	.box3 {
		width: 200px;
		height:200px;
		background-color: red;
		display:table-cell ;
		vertical-align: middle;
	}
	.box3 .child {
		width: 100px;
		height:100px;
		background-color: lightgreen;
		margin:auto ;
	}
</style>
<div class="box3">
	 <div class="child"></div>
</div>
4.子元素是不定宽的块元素
  <style>
.box4 {
	width: 200px;
	height:200px;
	background-color: pink;
	display:table-cell ;
	text-align: center ;
	vertical-align: bottom;
}
	  .box4    li {
		  display:inline  ;
	  }
  </style>
<div class="box4">
	<ul>
		<li><a href=“”>1</a></li>
		<li><a href="">2</a></li>
		<li><a href="">3</a></li>
		<li><a href="">4</a></li>
		<li><a href="">5</a></li>
	</ul>
 </div>
</body>
</html>
2、
<!<!doctype html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>决对定位</title>
</head>
<body>
<style>
 body{
        margin: 0;
 }
    .box  {
        width: 600px;
 height:600px;
 /*background-color: wheat;*/
        /*position: absolute;*/
 }
    .box1 {
        width: 200px;
 height:200px;
 background-color: green;
 position: absolute;
 top:0;
 left:200px;
 }
    .box2{
        width: 200px;
 height:200px;
 background-color: pink;
 position: absolute;
 top:200px;
 left:0;
 }
    .box3 {
        width: 200px;
 height:200px;
 background-color: darkred;
 position: absolute;
 top:200px;
 left:400px;
 }
    .box4 {
        width: 200px;
 height:200px;
 background-color: blue;
 position: absolute;
 top:400px;
 left:200px;
 }
</style>
<div class="box">
    <div class="box1"></div>
    <div class="box2"></div>
    <div class="box3"></div>
    <div class="box4"></div>
</div>

</body>
</html>

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Correction status：Uncorrected

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