三列布局实现方式

通过定位实现三列布局

 <!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>三列布局（定位实现）</title>
     <style type='text/css'>
        *{
            padding: 0;
            margin: 0;
        }
        body{
            /*position:relative;*/
            /*min-width: 600px;*/
        }
        .left,.right{
            width: 200px;
            height: 100px;
            background: pink;
        }
        .left{
            position:absolute;
            left: 0;
            top: 0;
        }
        .right{
            position:absolute;
            right: 0;
            top: 0;
        }
        .middle{
            height: 100px;
            background: skyblue;
            padding: 0 200px;
        }
     </style>
</head>
<body>
    <div class="left">left</div>
    <div class="middle">middle</div>
    <div class="right">right</div>  
</body>
</html>