flex 三列布局 

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <style>
        .main {
            height: 500px;
            background-color: blue;
            display: flex;
        }
        .left {
            width: 200px;
            height: 500px;
            background-color: blue;
        }
        .middle {
            flex: 1;
            height: 500px;
            background-color: yellow;
        }
        .right {
            width: 200px;
            height: 500px;
            background-color: blue;
        }
    </style>
</head>
<body>
<div class="main">
    <div class="left"></div>
    <div class="middle"></div>
    <div class="right"></div>
</div>


</body>
</html>
posted @ 2018-08-28 16:41  —只小白  阅读(884)  评论(0)  编辑  收藏  举报