flex不为人知的特性

flex布局下margin:auto的神奇用法

https://user-gold-cdn.xitu.io/2019/7/29/16c3d4f579c4de52?imageslim

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        .container {
            display: flex;
        }
        .container div{
            width: 20px;
            height: 20px;
            border: 1px solid black;
            background-color: #00ffff;
            /* margin: auto; */
        }
        .container div:nth-child(5){
            margin-left: auto;
        }

    </style>
</head>
<body>
    <div class="container">
        <div>1</div>
        <div>2</div>
        <div>3</div>
        <div>4</div>
        <div>5</div>
    </div>
</body>
</html>

　　

flex布局，当flex-grow之和小于1时，只能按比例分配部分剩余空间，而不是全部

https://user-gold-cdn.xitu.io/2019/7/29/16c3d4f642feaa48?imageslim

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        .container {
            display: flex;
            width: 300px;
            height: auto;
            background-color: olive;
        }
        .container div{
            width: 20px;
            height: 20px;
            border: 1px solid black;
            background-color: #00ffff;
            flex-grow: 0.1;
        }
        .container div:nth-child(3){
             flex-grow: 0.6;
        }

    </style>
</head>
<body>
    <div class="container">
        <div>1</div>
        <div>2</div>
        <div>3</div>
    </div>
</body>
</html>

　　

 

posted @ 2020-12-02 19:07  xiaorain124  阅读(48)  评论(0)    收藏  举报