• 一列二列三列布局


      通过学习了div和css,下面来实现简单的一列,二列,三列布局,欢迎交流,指正!

      1:一列居中布局

          

    <!doctype html>
    <html>
        <head>
           <title>一列布局</title>
           <meta charset="utf-8"> 
           <style type="text/css">
              *{padding:0;margin:0;font-size:14px;} 
              .top{800px;height:50px;background:blue;margin:0 auto}
              .main{500px;height:200px;background:green;margin:0 auto;} 
    .footer{500px;height:50px;background:#000;margin:0 auto;}   
           </style>
       </head>
    <body>
        <div class="top">top</div>
        <div class="main">main</div>
        <div class="footer">footer</div>
    </body>
    </html>

      2:二列自适应布局

     1 <!doctype html>
     2 <html>
     3     <head>
     4        <title>二列自适应布局</title>
     5        <meta charset="utf-8"> 
     6        <style type="text/css">
     7           *{padding:0;margin:0;font-size:14px;} 
     8           .left{width:20%;height:200px;background:blue;float:left}
     9           .right{width:80%;height:200px;background:green;float:right;} 
    10        </style>
    11    </head>
    12 <body>
    13     <div class="left">left</div>
    14     <div class="right">right</div>
    15  </body>
    16 </html>

        二列固定布局

     1  <!doctype html>
     2  <html>
     3       <head>
     4          <title>二列固定布局</title>
     5          <meta charset="utf-8"> 
     6          <style type="text/css">
     7             *{padding:0;margin:0;font-size:14px;} 
     8             .content{width:800px;background:blue;margin:0 auto}
     9             .left{width:500px;height:200px;background:green;float:left;} 
    10             .footer{width:300px;height:200px;background:green;float:right;}   
    11          </style>
    12      </head>
    13  <body>
    14      <div class="content">
    15          <div class="left">left</div>
    16          <div class="right">right</div>
    17      </div>
    18  </body>
    19  </html>  

       3:三列布局

            左右二列宽度固定,中间一列宽度自适应,使用了定位position:absolute来使左右分别固定在左上角和右上角,然后中间那列利用margin来设置

      <!doctype html>
      <html>
          <head>
             <title>三列布局</title>
             <meta charset="utf-8"> 
             <style type="text/css">
                *{padding:0;margin:0;font-size:14px;} 
                .left{width:300px;height:200px;background:blue;position:absolute;left:0;top:0;}
                .main {height:200px;background:green;margin:0 300px 0 300px;} 
     .right{width:300px;height:200px;background:green;position:absolute;right:0;top:0;}   
            </style>
        </head>
     <body>
            <div class="left">left</div>
             <div class="main">main</div>
             <div class="right">right</div> 
     </body>
     </html>  

     总结:平时所看到页面,大多数都是混合布局。三列布局和面试所说圣杯布局类似,圣杯布局它的目标是左右两栏定宽,中间那一行流式

    <div id="header"></div>
    
    <div id="container">
      <div id="center" class="column"></div>
      <div id="left" class="column"></div>
      <div id="right" class="column"></div>
    
    </div>
    
    <div id="footer"></div>

    css样式可以自己思考,方法不止一种。
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  • 原文地址:https://www.cnblogs.com/kevoin/p/4866471.html
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