absolute與relative的運用

來源:互聯網
上載者:User

  Div + CSS 進行網頁布局,適當地運用 absolute 與 relative,能給布局帶來意想不到的效果和方便,達到事半功倍,最近在有一篇關於 absolute 與 relative 的運用的文章,但講解不全面,不容易讀懂。下面我嘗試寫下一些我的看法,希望對你有協助…

  詳細講解兩者的關係,需要配合例子,請先看例子:

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<title>Div + CSS Example, Wayhome's Blog</title>
<style type="text/css">
<!--
body,td,th{font-family:Verdana;font-size:9px;}
-->
</style></head>
<body>
<div style="position:absolute; top:5px; right:20px; width:200px; height:180px; background:#00FF00;">
 position: absolute;<br />
 top: 5px;<br />
 right: 20px;<br />
 <div style="position:absolute; left:20px; bottom:10px; width:100px; height:100px; background:#00FFFF;">
position: absolute;<br />
left: 20px;<br />
bottom: 10px;<br />
</div>
</div>
<div style="position:absolute; top:5px; left:5px; width:100px; height:100px; background:#00FF00;">
 position: absolute;<br />
 top: 5px;<br />
 left: 5px;<br />
</div>
<div style="position:relative; left:150px; width:300px; height:50px; background:#FF9933;">
 position: relative;<br />
 left: 150px;<br />
 <br />
 width: 300px; height: 50px; <br />
</div>
<div style="text-align:center; background:#ccc;">
  <div style="margin:0 auto; width:600px; background:#FF66CC; text-align:left;">
  <p>1</p>
  <p>2</p>
  <p>3</p>
  <p>4</p>
  <p>5</p>
  <div style="padding:20px 0 0 20px; background:#FFFF00;">
    padding: 20px 0 0 20px;
  <div style="position:absolute; width:100px; height:100px; background:#FF0000;">position: <span style="color:#fff; ">absolute</span>;</div>
  <div style="position:relative; left:200px; width:500px; height:300px; background:#FF9933;">
    position: <span style="color:blue;">relative</span>;<br />
   left: 200px;<br />
   <br />
   width: 300px;<br />
   height: 300px;<br />
   <div style="position:absolute; top:20px; right:20px; width:100px; height:100px; background:#00FFFF;">
    position: absolute;<br />
    top: 20px;<br />
    right: 20px;<br /></div>
   <div style="position:absolute; bottom:20px; left:20px; width:100px; height:100px; background:#00FFFF;">
    position: absolute;<br />
  bottom: 20px;<br />
  left: 20px;<br />
  </div>
  </div>
  </div>
 
</div>
</div>
</body>
</html>

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