flex布局，术语和项目

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8" />
    <meta http-equiv="X-UA-Compatible" content="IE=edge" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>flex布局，术语和项目</title>
</head>
<body>
    <div class="container">
        <div class="item">item1</div>
        <div class="item">item2</div>
        <div class="item">item3</div>
    </div>
    <style>
        * {
            margin: 0;
            padding: 0;
            box-sizing: 0;
        }
        .container {
            /* flex容器 */
            display: flex;
            height: 20em;
            border: 5px solid #000;
            flex-direction: row;
            /* flex-direction: column; 主轴选择， */
            /* flex-wrap: wrap;  换行控制 */
            place-content: end;
        }
        .container>.item {
            width: 10em;
            padding: 1em;
            border: 2px solid red;
            background-color: lightgreen;
        }
    </style>
</body>
</html>
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