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css layout ?人的?梯

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Release： 2016-06-24 12:27:33

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Div 常用

absolute:??定位

relative:相?定位，?absolute配搭，?定relative通常是父的概念

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 1 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> 2 <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="zh-TW" lang="zh-TW"> 3 <head> 4 <meta http-equiv="Content-Type" content="text/html; charset=big5" /> 5 <meta http-equiv="Content-Style-Type" content="text/css" /> 6 <title>三?式版面</title> 7 <style type="text/css"> 8 #wrapper { 9     width: 100%; /* ?定???度 */10 }11 #header {12     background-color: #DDDDDD;13     height: 50px;14 }15 #container {16     position: relative;17     margin: 10px 0;18     width: 100%;19 }20 #primary {21     margin: 0 200px; /* ?定左右?界155px */22     background-color: #C7D5ED;23 }24 #secondary {25     position: absolute;26     left: 0px;27     top: 0px;28     width: 145px; /* ?定???度 */29     background-color: #F9CFBA;30 }31 #advertisement {32     position: absolute; /* ?配置方式值指定?absolute */33     right: 0px; /* 指定???右?的距? */34     top: 0px; /* 指定???上方的距? */35     width: 145px; /* ?定???度 */36     background-color: #E5C7ED;37 }38 #footer {39     background-color: #DDDDDD;40     height: 50px;41 }42 </style>43 </head>44 45 <body>46 <div id="wrapper">47     <div id="header"><br /></div>48     <div id="container">49         <div id="primary"><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /></div>50         <div id="secondary"><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /></div>51         <div id="advertisement"><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /></div>52     </div>53     <div id="footer"><br /></div>54 </div>55 </body>56 </html>

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float: div若是?定者??性，後面的文字?文??，下面的clear上面的float就?正常，?定float就必?要?定 width?性

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 1 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> 2 <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="zh-TW" lang="zh-TW"> 3 <head> 4 <meta http-equiv="Content-Type" content="text/html; charset=big5" /> 5 <meta http-equiv="Content-Style-Type" content="text/css" /> 6 <title>?作涵?其它??的Box</title> 7 <style type="text/css"> 8 #wrapper { 9     width: 760px;10 }11 #header {12     background-color: #DDDDDD;13     height: 50px;14 }15 #container {16     float: left; /* 指定??向左浮? */17     width: 605px; /* 指定???度 */18 }19 #primary {20     float: right; /* 指定??向右浮? */21     width: 450px;22     margin: 10px 0;23     background-color: #C7D5ED;24 }25 #secondary {26     float: left;27     width: 145px;28     margin: 10px 0 10px 0px; /* 只修改上、下?界的值 */29     background-color: #F9CFBA;30 }31 #advertisement {32     float: right;33     width: 145px;34     margin: 10px 0;35     background-color: #E5C7ED;36 }37 #footer {38     clear: both;39     background-color: #DDDDDD;40     height: 50px;41 }42 </style>43 </head>44 45 <body>46 <div id="wrapper">47     <div id="header"><br /></div>48     <div id="container">49         <div id="primary"><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /></div>50         <div id="secondary"><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /></div>51     </div>52     <div id="advertisement"><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /></div>53     <div id="footer"><br /></div>54 </div>55 </body>56 </html>

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margin:容器?的差距，?容器?定width 100%的?候，margin??的，代表容器??有?距到後面的容器?到上一?容器的?值上

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 1 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> 2 <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="zh-TW" lang="zh-TW"> 3 <head> 4 <meta http-equiv="Content-Type" content="text/html; charset=big5" /> 5 <meta http-equiv="Content-Style-Type" content="text/css" /> 6 <title>以??界?作可自??整?度的??</title> 7 <style type="text/css"> 8 #wrapper { 9     width: 100%; /* 修改??的?度?定 */10 }11 #header {12     background-color: #DDDDDD;13     height: 50px;14 }15 #container {16     float: left;17     width: 100%; /* 修改??的?度?定 */18     margin-right: -145px; /* ?定右?界的值??值 */19 }20 #primary {21     float: right;22     width: 100%; /* 修改??的?度?定 */23     margin: 10px 0 10px -145px; /* ?定左?界的值??值 */24     background-color: #C7D5ED;25 }26 #content {27     margin: 0 155px; /* ?定左右?界 */28     background-color: #CAEDC7;29 }30 #secondary {31     float: left;32     width: 145px;33     margin: 10px 0 10px 0px;34     background-color: #F9CFBA;35 }36 #advertisement {37     float: right;38     width: 145px;39     margin: 10px 0;40     background-color: #E5C7ED;41 }42 #footer {43     clear: both;44     background-color: #DDDDDD;45     height: 50px;46 }47 </style>48 </head>49 50 <body>51 <div id="wrapper">52     <div id="header"><br /></div>53     <div id="container">54         <div id="primary">55             <div id="content"><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /></div>56         </div>57         <div id="secondary"><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /></div>58     </div>59     <div id="advertisement"><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /></div>60     <div id="footer"><br /></div>61 </div>62 </body>63 </html>

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