实现三个div，固定左右两边的div宽为200，中间的div宽度自适应的四种方法 

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>实现三个div，固定左右两边的div宽为200，中间的div宽度自适应的四种方法</title>
    <style type="text/css">
        html,body{
            width:100%;
            height:100%;
            margin:0;
            padding:0;
            color: #fff;
            text-align: center;
            line-height: 100px;
        }
        .clear:after{content:"";display:block;height:0;clear:both;}
        /*float法*/
        .left{
            float: left;
            width:200px;
            height: 100px;
            background:Red;
        }
        .right{
            float: right;
            width:200px;
            height: 100px;
            background:green;
        }
        .center{
            margin-left: 200px;
            margin-right: 20px;
            height: 100px;
            background:blue;
        }
        /*position*/
        .position{
            position: relative;
            margin-bottom: 20px;
        }
        .left2{
            position:absolute;
            left:0;
            top:0;
            width:200px;
            height: 100px;
            background:Red;
        }
        .right2{
            position:absolute;
            right:0;
            top:0;
            width:200px;
            height: 100px;
            background:green;
        }
        .center2{
            position:absolute;
            left:200px;
            right:200px;
            top:0; 
            background:blue;
        }
        /*table*/
        .table{
            display: table;
            width:100%;
        }
        .table .child{
            display: table-cell;
        }
        .left3{
            width:200px;
            height: 100px;
            background:Red;
        }
        .right3{
            width:200px;
            height: 100px;
            background:green;
        }
        .center3{
            height: 100px;
            background:blue;
        }
        /*flex*/
        .flex{
            display: box;
            display:-webkit-box;
            display:-moz-box;
        }
        .left4{
            width:200px;
            height: 100px;
            background:Red;
        }
        .right4{
            width:200px;
            height: 100px;
            background:green;
        }
        .center4{
            box-flex:1;
            -webkit-box-flex: 1;
            -moz-box-flex: 1;
            background: blue;
        }
    </style>
</head>
<body>
    <div class="clear">
        <div class="left">float法</div>
        <div class="right">float法</div>
        <div class="center">float法</div>
    </div>
    <br/>
    <div class="position clear">
        <div class="left2">position法</div>
        <div class="right2">position法</div>
        <div class="center2">position法</div>
    </div>
    <br/>
    <div class="table clear">
        <div class="left3 child">table法</div>
        <div class="center3 child">table法</div>
        <div class="right3 child">table法</div>
    </div>
    <br>
    <div class="flex clear">
        <div class="left4 child">flex法</div>
        <div class="center4 child">flex法</div>
        <div class="right4 child">flex法</div>
    </div>
</body>
</html>

 

 
效果图如下：

 

posted @ 2019-03-20 10:19  维维WW  阅读(420)  评论(0)    收藏  举报