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  • 三列自适应布局(左右定宽 中间自适应)

    左右定中间自适应三列布局

    1.绝对定位 2.浮动 3.flex

     1 1.绝对定位
     2 <!doctype html>
     3 <head>
     4     <meta charset="utf-8" />
     5     <title>三栏布局</title>
     6     <style type="text/css">
     7     * {
     8         margin: 0;
     9         padding: 0;
    10     }
    11     
    12     #main {
    13         margin: 0 300px;
    14         height: 200px;
    15         background: #00b7ef;
    16     }
    17     
    18     #left,
    19     #right {
    20         width: 300px;
    21         height: 200px;
    22     }
    23     
    24     #left {
    25         position: absolute;
    26         top: 0;
    27         left: 0;
    28         background: #8fc41f;
    29     }
    30     
    31     #right {
    32         position: absolute;
    33         top: 0;
    34         right: 0;
    35         background: #fffaba;
    36     }
    37     </style>
    38 </head>
    39 
    40 <body>
    41     <!-- 位置是left main right 位置可互换-->
    42     <div id="left">
    43     </div>
    44     <div id="right">
    45     </div>
    46     <div id="main">
    47     </div>
    48 </body>
    49 
    50 </html>
     1 2.浮动
     2 <!DOCTYPE html>
     3 <html lang="en">
     4 
     5 <head>
     6     <meta charset="utf-8" />
     7     <title> 三列左右固定宽度中间自适应</title>
     8     <style>
     9     body {
    10         margin: 0;
    11         padding: 0;
    12     }
    13     
    14     #left {
    15         background-color: #E8F5FE;
    16         height: 400px;
    17         width: 100px;
    18         float: left;
    19     }
    20     
    21     #center {
    22         background-color: #F2FDDB;
    23         height: 400px;
    24         margin-right: 100px;
    25         margin-left: 100px;
    26     }
    27     
    28     #right {
    29         background-color: #FFE7F4;
    30         height: 400px;
    31         width: 100px;
    32         float: right;
    33     }
    34     </style>
    35 </head>
    36 
    37 <body>
    38     <!-- 必须是左右中三列顺序 如果是float-->
    39     <div id="left">左列</div>
    40     <div id="right">右列</div>
    41     <div id="center">中列</div>
    42 </body>
    43 
    44 </html>
    
    
     1 3. flex
     2 <!DOCTYPE html>
     3 <html lang="en">
     4 
     5 <head>
     6     <meta charset="UTF-8">
     7     <title>Document</title>
     8     <style type="text/css">
     9     * {
    10         margin: 0;
    11         padding: 0;
    12     }
    13     
    14     .three-coloum {
    15         display: flex;
    16         display: -webkit-flex;
    17         width: 100%;
    18         height: 500px;
    19     }
    20     
    21     .left {
    22         background-color: red;
    23         width: 200px;
    24         /*height: 100px;*/
    25     }
    26     
    27     .right {
    28         background: blue;
    29         width: 200px;
    30         /*height: 100px;*/
    31     }
    32     
    33     .main {
    34         background: yellow;
    35         flex: 1;
    36         -webkit-box-flex: 1;
    37         -moz-box-flex: 1;
    38     }
    39     </style>
    40 </head>
    41 
    42 <body>
    43     <div class="three-coloum">
    44         <div class="left"></div>
    45         <div class="main">中间</div>
    46         <div class="right"></div>
    47     </div>
    48 </body>
    49 
    50 </html>
     
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  • 原文地址:https://www.cnblogs.com/angle-happy/p/5932479.html
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